Friday, December 23, 2011

Sudanese police in second crackdown against dam protestors

Sudanese police in second crackdown against dam protestors
Sudan Tribune, Friday 23 December 2011
www.sudantribune.com/Sudanese-police-in-second,41069

December 22, 2011 (KHARTOUM) � The Sudanese capital Khartoum has
witnessed a second round of demonstrations against a government dam
project upcountry as President Omer Al-Bashir pledged to find a quick
solution to the issue.

Anti-riot police forces on Thursday fired teargas and used batons to
disperse a protest staged in downtown Khartoum by dozens of students
affiliated to, or acting in solidarity with, Al-Manasir, one of three
tribal populations which incurred severe losses of properties due to the
construction of Merowe Dam in their homelands on the Fourth cataract of
the River Nile, 350 kilometers north of Khartoum.

A similar crackdown was meted out earlier on Tuesday against Al-Manasir
demonstrators in downtown Khartoum, leading to the arrest of around ten
protestors.

Thursday�s protest moved to the University of Khartoum where several
other students joined the protestors, eye witnesses told Sudan Tribune.

Around 300 students marched out of Khartoum University�s main campus,
chanting slogans denouncing president Al-Bashir.

Police forces then arrived at the scene and clashed with the protestors,
firing tear gas and chasing them inside the campus. Dozens were
arrested, according to the witnesses.

The police also dispersed another protest staged later in the evening by
female students affiliated to Al-Manasir. The students had earlier
blocked the road in front of their house near Khartoum University and
chanted slogans calling for overthrowing the government.

These protests came one month after Al-Manasir started a sit-in in El
Damer town in the Nile River State to protest against the government�s
failure to compensate them for the damage of their properties.

Meanwhile, president Al-Bashir held a meeting with the Nile River
State�s governor Al-Hadi Abdallah and discussed Al-Manasir issue. The
governor told reporters following the meeting that Al-Bashir had
promised resolve the issue �within days� and declared his intention to
visit the state in mid-January.

The construction of Merowe dam, which was financed by China, the Arab
Fund for Social & Economical Development, the Saudi Fund for Development
and other Arab funds at a cost of more than 2 billion US dollars, has
displaced more than 100,000 local persons belonging to three riverian
communities, Al Hamdab, Amri and Al-Manasir.

Local opposition to Meroew dam began in 2003 when its construction
started. In 2006, a militia linked to the Merowe Dam Implementation Unit
(MDIU) attacked a peaceful protest by local communities with live
ammunitions, killing three people on the spot and injuring more than forty.

According to Sudanese and International Human Rights Organisations the
Merowe Dam project has been marred by massive human rights abuses since
its inception. Members of the affected communities have been subjected
to detention, torture, injury, and killings.

(ST)
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Wednesday, December 21, 2011

Sudan riot police break up dam protest

Sudan riot police break up dam protest
News24, 2011-12-21 07:44
www.news24.com/Africa/News/Sudan-riot-police-break-up-dam-protest-20111220

Khartoum - Sudanese riot police on Tuesday used batons to beat youths
shouting anti-regime slogans in support of residents displaced by the
giant Merowe dam, an AFP reporter witnessed.

About 100 young demonstrators gathered at Khartoum's crowded main bus
station to stage their afternoon protest.

They held a banner proclaiming support for those displaced by the dam
and shouted: "People want to change the regime."

Police then forcefully moved in and detained an unknown number of the
demonstrators.

Their protest came exactly one month after about 1 000 people displaced
by the dam began a sit-in over the government's alleged failure to
compensate them with replacement homes as promised.

They are continuing their sit-in at Al-Damer, a town around 300km north
of Khartoum.

Completed in 2009 at a cost of more than $2bn, the Chinese-built Merowe
dam doubled Sudan's power generation capacity.

But it also displaced 15 000 families, who were ordered to leave their
homes three years ago to make way for the dam and the huge reservoir
that formed behind it.

Protests by villagers opposed to the project broke out in 2006, leaving
three people dead and dozens injured.

Khartoum sits on the confluence of the Blue and White Niles. The
government has aggressively sought to tap the power of the river waters,
a valuable resource that could help offset the loss of oil revenues when
South Sudan separated in July.
- SAPA
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Pastoralists weigh in on Gibe Dam, land grabs

Two articles by Radio Netherlands Worldwide.

http://www.rnw.nl/africa/article/ethiopias-gibe-iii-a-dam-too-far

Ethiopia's Gibe III - A dam too far?
Published on : 20 December 2011 - 3:24pm | By RNW Africa Desk
(Photo : RNW)

Michael Irgiena doubts if his ten children will ever be fishermen like
him, or have any future living on the shores of the world�s largest
desert lake Turkana in the barren border region of Ethiopia and Kenya.
By Luc van Kemenade, Addis Ababa

Lake Turkana, in the barren border region of Ethiopia and Kenya, is
home to the Dasanech and Turkana tribes. Michael, a Dasanech
tribesman living in a small village in northern Kenya, has been a
fisherman for 26 years and, like his fellow tribesmen, he fully
depends on the salty lake for his livelihood.

The semi-nomadic desert tribes often fight bloody battles over the
region's scarce water and pasture which they use for fishing and
cattle grazing. Michael explains that the construction of an ambitious
cascade of dams along Ethiopia's Omo river may make life even more
challenging for nomads in the region.

�I was shocked when I heard the news about Ethiopia�s dam on the
radio,� he says while sitting on his bed in his dusky dome-shaped hut
at the shores of Turkana. �What came to mind very quickly was: what
about the lake I am fishing in? What about my children?�


Hydropower
In a push for development, Ethiopia is building one of Africa�s
largest hydropower dams in the Omo River that flows into Lake Turkana,
providing 90 percent of its water. The two billion dollar dam called
Gibe III is said to nearly double the East African nation�s power
capacity and transform its southern wilderness into highly productive
cultivated farm lands, irrigated by the dam�s regulated outflow.

According to the Ethiopian government, the dam will develop the region
and end a �backward lifestyle�, transforming its southern wilderness
into highly productive cultivated farmland, irrigated by the dam�s
regulated outflow. It says that domestic and foreign investors will
grow sugar cane and other cash crops on a large-scale in the south, an
area known for its numerous indigenous tribes.

Although Michael admits that development would be good for the tribes
of Lake Turkana - a drought-stricken area with no electricity and poor
infrastructure, he remains cautious and worries that water levels in
Turkana will drop. �The water will be too salty, so there will be no
fish living in the lake,� he says. �And all the animals we have, all
the cattle, will die. If there is no water, there will be no grass.�

For Michael, like many of his fellow tribesmen, loss of fish means
loss of work. He also fears that the dam will lead to further
bloodshed as the Dasanech and Turkana will be forced to move into
neighboring tribes� territory in search of water and pasture.

Drying up
While Ethiopia denies that its dam will reduce water levels, a group
of scholars from the United States, Europe and East Africa shares
Michael�s concerns.

In a 2009 study the Africa Resources Working Group estimated that
water levels could drop ten to twelve metres drying up fish stocks and
drinking water. The United Nations subsequently called on Ethiopia to
cease construction of the dam, fearing it would destroy Lake Turkana,
listed as a UN world heritage site.

But Ethiopia says there is �no way� that the project will be stopped,
claiming its own studies show that Lake Turkana�s water levels would
increase and the dam�s regulated flow would put an end to drought and
floods.

Like other members of the Dasanech, Michael fears that Ethiopia�s
decision to move forward with the project without informing its people
will have a negative impact: �If you do something without informing
people, you know it will have an effect,� he says. �It would be better
if we all sit together and negotiate about what they are going to do
for our people.�

Ethiopia tribesmen fear forced end to �backward� lifestyle
Published on : 21 December 2011 | By RNW Africa Desk (Photo: RNW
Africa/ Luc van Kemenade)

�We are a dying people,� says Gorgis, a cattle herder from the Bodi
tribe who lives in the bush near Hana town in South Ethiopia, home to
the semi-nomadic Mursi and Bodi tribes.

By Luc van Kemenade, Addis Abeba

Like his fellow tribesmen Gorgis moves around with cattle in search of
water and grasslands.

His family of two wives and eleven children grows crops along the
banks of the Omo River that flows through Ethiopia�s Lower Omo Valley,
a world heritage site and the territory of sixteen indigenous tribes.


Sugar
Just outside Hana, Ethiopia�s state-owned sugar corporation has seized
150,000 hectares to set up a sugar plantation, annually sucking up
three billion cubic meters of water from the river and occupying its
fertile banks.

The plantation is part of a development plan that will transform the
uncultivated area into cash crop producing farmland, Ethiopia says.
Upstream the country is building one of Africa�s largest hydropower
dams.

The two billion-dollar dam called Gibe III will double Ethiopia�s
power capacity, it says. The dam�s regulated outflow will be used to
irrigate large plots of sugar farmland from a 150 kilometers-long
reservoir.

Development
The push for development includes the resettlement of thousands of
tribesmen into permanent settlements where Ethiopia says they will
have access to health facilities and schools. The days of southern
tribes, popular among tourists and academics, �walking around naked�
and living a �backward� lifestyle are over, Ethiopia says.

�There are people who say they are concerned about pastoralists,�
longtime leader Meles Zenawi said in a speech earlier this year. �But
they want pastoralists to remain a tourist attraction forever. The
pastoralists don�t want to live as a tourist attraction. They want a
stable, improved life.�

Most of the Bodi around Hana say Ethiopian officials haven�t informed
them. �The government is already building new villages and wants us to
move there,� Gorgis says. �We haven�t been asked anything and our King
says they are thieves.�


� Ethiopia�s Lower Omo Valley
� Photo: RNW/ Luc van Kemenade - http://www.rnw.nl/africa
� Duri Bela prefers a life of living in the bush to a modern life in
a permanent settlement
� Photo: RNW/ Luc van Kemenade - http://www.rnw.nl/africa
� Lake Turkana
� Photo: RNW/ Luc van Kemenade - http://www.rnw.nl/africa
� A Bodi man on guard at a sugar plantation under construction
� Photo: RNW/ Luc van Kemenade - http://www.rnw.nl/africa
�

�

�

�

Criticism
Rights groups have criticised Ethiopia�s dam and the United Nations
called for an immediate end to construction. The opponents say the dam
will forever alter the lives of hundreds of thousands indigenous
people depending on the Omo River. They fear widespread hunger and
conflict over water.

Duri Bela, a Bodi pastoralist wearing a red chequered toga, says he
never heard about the plans until bulldozers arrived in Hana to build
the plantation. Now �they have taken our land, use our water, and are
building on our fields�, he says. �We might grow hungry.�

Survival International, a rights group campaigning for tribal rights,
reported a crackdown on locals in Hana opposing the dam, saying �over
a 100� protestors had been arrested. People in the area wouldn�t
confirm the report, but said they are afraid to speak out against the
plans.

Revolt
An expert in the region who asked to remain anonymous said there is no
doubt that the tribes will take up arms against the government: �A
revolt is going to happen.�

Ethiopian officials say this is �false propaganda� from
environmentalists trying to undermine their development agenda. It
says locals will benefit from new jobs and will be compensated for
resettlement.

But policemen in Hana detained Radio Netherlands Worldwide�s
correspondent for five hours after visiting the sugar corporation�s
local office, only to release him after a regional manager dashed into
town in his four wheel drive, showing little confidence about
journalists nosing around at the project site.

Duri Bela says he prefers living in the bush to a new life in a
settlement. �I need my children to be pastoralists,� he says. �When I
see the town, I see few people making money. They sleep on the streets
and beg. We don�t want to become beggars in a town. Pastoralists don�t
beg.�
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Tuesday, December 20, 2011

Ten "Rules-of-Thumb" to Select Better Hydro Projects

sorry for x-postings, but this is a good summary of how to avoid the
worst problems for big dams, by a former World Bank enviro specialist.

http://ieds.newsvine.com/_news/2011/12/20/9584548-ten-rules-of-thumb-to-select-better-hydroelectricity-projects

Ten "Rules-of-Thumb" to Select Better Hydroelectricity Projects

Dec 20, 2011 1:11 PM EST

By Institute for Environmental Diplomacy and Security, Univ. of Vermont

Guest post by Dr. Robert Goodland
Comments and corrections to: RbtGoodland@gmail.com

1. Adopt Best Practice

Follow �Best Practice� to the fullest extent possible. This
includes utilizing best technology, as per rule 10 below. All dam
proponents and financiers need an environmental and social policy.
Much best practice for hydro selection, planning, construction,
monitoring (starting with adequate pre-project surveys which are
required if progress is to be measured), including panels of social
and environmental experts, is well codified by the World Commission on
Dams (2000). Follow best practice throughout the Environmental and
Social Impact Assessment (ESIA) process -- beginning with adequate pre-
project demographic, environmental, health, and socio-economic
baseline surveys � and then throughout construction, operations, and
decommissioning. Teams who have worked in any one country should
uphold or strengthen standards when working on dams in foreign
countries; avoid double standards.

2. Perform regional planning

Reduce environmental impacts by cramming many dams on the fewest
rivers in a country or region. Often, the first dam imposes most of
the impact of a cascade of dams. But scrutinize social risks
beforehand. Interpolating one more dam to a cascade generally is lower
impact. The highest impacts would be to site a single dam on each of
the nation�s rivers. Interpolation of a dam between two existing
dams or shortly upstream of an existing dam greatly reduces the impact
of the new dam. The first dam on a river normally has the biggest
impact, compared with the impacts of subsequent dams on the same river.

3. Rehab existing projects before new projects

Rehabilitate, refurbish, renovate or upgrade existing hydros before
going ahead with new hydros. Adding new turbines or replacing old
turbines with more efficient or bigger ones are almost always much
lower impact than building new dams. Rehabs should normally be well
in hand before a new dam is contemplated, just as energy conservation
and demand management should be well in hand before new generation is
permitted. For example, it has been calculated that 70,000 MW could be
developed in the USA by rehab alone, with no new dams. Now that
Venezuela�s Guri hydro complex, Nigeria�s Kainji and the Zambia/
Zimbabwe Kariba hydros, for example, are several decades old, they are
being usefully upgraded with low impacts.

5. Dam tributaries before the mainstem

Develop dams on tributaries before dams on the mainstem. If a
mainstream dam is necessary based on comprehensive options assessment,
it should be sited as far upstream as feasible. That will often impose
less impact. Outstream diversions may be high impact.

6. Uphold Human Rights, especially Free Prior Informed Consent

Seek free prior informed consent from stakeholders, as well as
meaningful consultation. Reject any use of force, and reject any
measure that would be involuntary. Choose sites with little or no
need for resettlement. All resettlement must be strictly voluntary
(UN FPIC). As soon as oustees consent to their move, it should proceed
expeditiously. Oustees must promptly become better off project
beneficiaries as soon after their move as possible. If the dam is
built and owned by Indigenous People or ethnic minorities (e.g.,
Canada�s Minashtuk Hydro) other rules will apply.

Avoid conflict zones and militarized areas. Ensure effective grievance
mechanisms and respect for human rights. All potentially impacted
stakeholders (upstream, reservoir basin, downstream, and other
(including those living along transmission lines and project roads)
must be consulted and participate in decisions affecting them from the
options assessment stage, to get away from a project-centered
perspective, thru pre-feasibility and construction and afterwards.

7. Promote irrigation before electricity

Many dams are labeled �multipurpose� nowadays, suggesting that the
purpose of the dam in question includes more than one purpose, such as
generation of electricity, flood control, water supply, fisheries,
navigation and irrigation. This can be misleading because in
operating the dam, power generation is almost always the topmost
priority, as compared to secondary uses such as irrigation.
Electricity generation earns by far the most revenue. Some of this
revenue is best allocated to promoting other uses, such as irrigation.
Most so-called �multipurpose� dams indeed have more than a single
purpose, but the other purposes are subsidiary to power generation.

In many poor rural areas, water to grow food is much more important
than electricity. Irrigation often depends on water storage during the
wet season for release during the lean season. While it is possible
for irrigation to be combined with hydro in multi-purpose schemes,
there are often inherent incompatibilities between generation of
electricity and provision of irrigation water when water is scarce but
most needed during the dry season. When dam operators must choose one
over the other, electricity generation almost always trumps
irrigation. This is important in several ways, especially when in
contrast to hydro electricity generation, there are few alternatives
to irrigation dams, and agricultural intensification is much needed as
world population may exceed 9 bn by 2050.

8. Manage both climate mitigation and climate adaptation

All new dam designs nowadays need a thorough greenhouse gas (GHG)
emissions assessment. Choose low emissions designs. Dams likely to
emit as much GHG as a coal-fired equivalent should not be developed.
Conversely, dams likely to emit less GHG than a gas-fired equivalent
should be promoted. Reduce the amount of biomass in the reservoir
before filling. More than 27 European nations and Australia, and many
jurisdictions (e.g., Vancouver) now mandate a charge for GHG
emissions. Hydro must internalize its GHG emissions in project design
and cost/benefit analysis.

The best hydros will be designed to take climate change into account.
Hydros are designed based on the best historic river discharge data
obtainable. Now climate change has arrived, the best hydros will be
designed using the most reliable predictions of climate change on the
future of river flows. Extreme events (heavy rains, storms, droughts)
may become more frequent. Appropriate adaptation strategies will
include diversified and decentralized investments, to avoid putting
all eggs into one basket in a time of increasing hydrological
uncertainty.

9. Conserve Biodiversity

Choose sites with little or no valuable biodiversity habitat (such as
tropical forest). Lower the dam height or move the dam to minimize
forest loss. If some forest loss cannot be avoided, finance
compensatory offsets that provide better benefits than the area
inundated. Conservation units (e.g. National Parks, UN World Biosphere
Reserves, UN World Heritage sites, protected forests) should normally
always be avoided.

10. Reduce reservoir size and minimize hydraulic head

Optimize the potential of hydrokinetic turbines or non-dam hydro.
Select no-head, ultra-low head (c.3 m), and micro-hydro � all before
higher-head hydros. Hydros in which the reservoir fills the riverbed
up to the annual wet season level are usually low impact. In the
paramount tradeoff between reservoir area and impacts, reduce
reservoir area by optimizing flow (by tube turbines), and reducing
head, preferably to zero. Select engineering (e.g., by kinetic
turbines) to reduce the size of the reservoir area.

Caveat

Pithy �Rules-of-Thumb� suffer from simplification and these are no
exception. Although these Rules-of-Thumb apply only to
hydroelectricity dams, and not to irrigation dams, they would also all
apply with minor revisions to most development projects (except # 10,
which is entirely hydro-specific). These Rules-of-Thumb apply only to
hydroelectricity dams which supply about 20% of world electricity, and
for which there are many alternate sources of electricity,
particularly renewables (e.g., solar, wind, wave). They apply mainly
to big dams, rather than to microhydro, which impose lower impacts.
The �Rules-of-Thumb� are offered mainly to hydro designers, hydro
financiers and those seeking to reduce the impacts of big hydro.
Renewable energy is fast becoming more feasible as climate change,
democracy and biodiversity are accorded more importance.

The author, Robert Goodland, served the World Bank Group as
environmental adviser for 23 years, where he drafted and persuaded the
Bank to adopt its current mandatory social and environmental
�Safeguard� policies. He helped set up the World Commission on
Dams in Cape Town. After retirement, he was the Technical Director of
the independent Extractive Industry Review of the World Bank�s oil,
gas and mining portfolio (EIR.org). He was elected chair of the
Ecological Society of America (Metropolitan), and President of the
International Association for Impact Assessment. Last year he was
awarded IUCN�s Coolidge Medal for outstanding lifetime achievement
in environmental conservation.
________________________________________________

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Ten "Rules-of-Thumb" to Select Better Hydro Projects

http://ieds.newsvine.com/_news/2011/12/20/9584548-ten-rules-of-thumb-to-select-better-hydroelectricity-projects

Ten "Rules-of-Thumb" to Select Better Hydroelectricity Projects

Dec 20, 2011 1:11 PM EST

By Institute for Environmental Diplomacy and Security, Univ. of Vermont

Guest post by Dr. Robert Goodland
Comments and corrections to: RbtGoodland@gmail.com

1. Adopt Best Practice

Follow �Best Practice� to the fullest extent possible. This includes
utilizing best technology, as per rule 10 below. All dam proponents
and financiers need an environmental and social policy. Much best
practice for hydro selection, planning, construction, monitoring
(starting with adequate pre-project surveys which are required if
progress is to be measured), including panels of social and
environmental experts, is well codified by the World Commission on
Dams (2000). Follow best practice throughout the Environmental and
Social Impact Assessment (ESIA) process -- beginning with adequate pre-
project demographic, environmental, health, and socio-economic
baseline surveys � and then throughout construction, operations, and
decommissioning. Teams who have worked in any one country should
uphold or strengthen standards when working on dams in foreign
countries; avoid double standards.

2. Perform regional planning

Reduce environmental impacts by cramming many dams on the fewest
rivers in a country or region. Often, the first dam imposes most of
the impact of a cascade of dams. But scrutinize social risks
beforehand. Interpolating one more dam to a cascade generally is lower
impact. The highest impacts would be to site a single dam on each of
the nation�s rivers. Interpolation of a dam between two existing dams
or shortly upstream of an existing dam greatly reduces the impact of
the new dam. The first dam on a river normally has the biggest
impact, compared with the impacts of subsequent dams on the same river.

3. Rehab existing projects before new projects

Rehabilitate, refurbish, renovate or upgrade existing hydros before
going ahead with new hydros. Adding new turbines or replacing old
turbines with more efficient or bigger ones are almost always much
lower impact than building new dams. Rehabs should normally be well
in hand before a new dam is contemplated, just as energy conservation
and demand management should be well in hand before new generation is
permitted. For example, it has been calculated that 70,000 MW could be
developed in the USA by rehab alone, with no new dams. Now that
Venezuela�s Guri hydro complex, Nigeria�s Kainji and the Zambia/
Zimbabwe Kariba hydros, for example, are several decades old, they are
being usefully upgraded with low impacts.

5. Dam tributaries before the mainstem

Develop dams on tributaries before dams on the mainstem. If a
mainstream dam is necessary based on comprehensive options assessment,
it should be sited as far upstream as feasible. That will often impose
less impact. Outstream diversions may be high impact.

6. Uphold Human Rights, especially Free Prior Informed Consent

Seek free prior informed consent from stakeholders, as well as
meaningful consultation. Reject any use of force, and reject any
measure that would be involuntary. Choose sites with little or no
need for resettlement. All resettlement must be strictly voluntary
(UN FPIC). As soon as oustees consent to their move, it should proceed
expeditiously. Oustees must promptly become better off project
beneficiaries as soon after their move as possible. If the dam is
built and owned by Indigenous People or ethnic minorities (e.g.,
Canada�s Minashtuk Hydro) other rules will apply.

Avoid conflict zones and militarized areas. Ensure effective grievance
mechanisms and respect for human rights. All potentially impacted
stakeholders (upstream, reservoir basin, downstream, and other
(including those living along transmission lines and project roads)
must be consulted and participate in decisions affecting them from the
options assessment stage, to get away from a project-centered
perspective, thru pre-feasibility and construction and afterwards.

7. Promote irrigation before electricity

Many dams are labeled �multipurpose� nowadays, suggesting that the
purpose of the dam in question includes more than one purpose, such as
generation of electricity, flood control, water supply, fisheries,
navigation and irrigation. This can be misleading because in
operating the dam, power generation is almost always the topmost
priority, as compared to secondary uses such as irrigation.
Electricity generation earns by far the most revenue. Some of this
revenue is best allocated to promoting other uses, such as irrigation.
Most so-called �multipurpose� dams indeed have more than a single
purpose, but the other purposes are subsidiary to power generation.

In many poor rural areas, water to grow food is much more important
than electricity. Irrigation often depends on water storage during the
wet season for release during the lean season. While it is possible
for irrigation to be combined with hydro in multi-purpose schemes,
there are often inherent incompatibilities between generation of
electricity and provision of irrigation water when water is scarce but
most needed during the dry season. When dam operators must choose one
over the other, electricity generation almost always trumps
irrigation. This is important in several ways, especially when in
contrast to hydro electricity generation, there are few alternatives
to irrigation dams, and agricultural intensification is much needed as
world population may exceed 9 bn by 2050.

8. Manage both climate mitigation and climate adaptation

All new dam designs nowadays need a thorough greenhouse gas (GHG)
emissions assessment. Choose low emissions designs. Dams likely to
emit as much GHG as a coal-fired equivalent should not be developed.
Conversely, dams likely to emit less GHG than a gas-fired equivalent
should be promoted. Reduce the amount of biomass in the reservoir
before filling. More than 27 European nations and Australia, and many
jurisdictions (e.g., Vancouver) now mandate a charge for GHG
emissions. Hydro must internalize its GHG emissions in project design
and cost/benefit analysis.

The best hydros will be designed to take climate change into account.
Hydros are designed based on the best historic river discharge data
obtainable. Now climate change has arrived, the best hydros will be
designed using the most reliable predictions of climate change on the
future of river flows. Extreme events (heavy rains, storms, droughts)
may become more frequent. Appropriate adaptation strategies will
include diversified and decentralized investments, to avoid putting
all eggs into one basket in a time of increasing hydrological
uncertainty.

9. Conserve Biodiversity

Choose sites with little or no valuable biodiversity habitat (such as
tropical forest). Lower the dam height or move the dam to minimize
forest loss. If some forest loss cannot be avoided, finance
compensatory offsets that provide better benefits than the area
inundated. Conservation units (e.g. National Parks, UN World Biosphere
Reserves, UN World Heritage sites, protected forests) should normally
always be avoided.

10. Reduce reservoir size and minimize hydraulic head

Optimize the potential of hydrokinetic turbines or non-dam hydro.
Select no-head, ultra-low head (c.3 m), and micro-hydro � all before
higher-head hydros. Hydros in which the reservoir fills the riverbed
up to the annual wet season level are usually low impact. In the
paramount tradeoff between reservoir area and impacts, reduce
reservoir area by optimizing flow (by tube turbines), and reducing
head, preferably to zero. Select engineering (e.g., by kinetic
turbines) to reduce the size of the reservoir area.

Caveat

Pithy �Rules-of-Thumb� suffer from simplification and these are no
exception. Although these Rules-of-Thumb apply only to
hydroelectricity dams, and not to irrigation dams, they would also all
apply with minor revisions to most development projects (except # 10,
which is entirely hydro-specific). These Rules-of-Thumb apply only to
hydroelectricity dams which supply about 20% of world electricity, and
for which there are many alternate sources of electricity,
particularly renewables (e.g., solar, wind, wave). They apply mainly
to big dams, rather than to microhydro, which impose lower impacts.
The �Rules-of-Thumb� are offered mainly to hydro designers, hydro
financiers and those seeking to reduce the impacts of big hydro.
Renewable energy is fast becoming more feasible as climate change,
democracy and biodiversity are accorded more importance.

The author, Robert Goodland, served the World Bank Group as
environmental adviser for 23 years, where he drafted and persuaded the
Bank to adopt its current mandatory social and environmental
�Safeguard� policies. He helped set up the World Commission on Dams in
Cape Town. After retirement, he was the Technical Director of the
independent Extractive Industry Review of the World Bank�s oil, gas
and mining portfolio (EIR.org). He was elected chair of the Ecological
Society of America (Metropolitan), and President of the International
Association for Impact Assessment. Last year he was awarded IUCN�s
Coolidge Medal for outstanding lifetime achievement in environmental
conservation.
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Africans Must Adapt to Drought in Warming World: Report

(suggests fewer inflexible big dams, more rainwater harvesting
structures, among other things)


Africans Must Adapt to Drought in Warming World: Report
by Ker Than

For National Geographic News

Climate change will call for more flexible solutions to water
challenges.
A new report cautions African countries to look beyond dams (like this
one in Zimbabwe) to deal with water supply issues for an uncertain
future.
Photograph from Images of Africa Photobank/Alamy

http://news.nationalgeographic.com/news/2011/12/111216-africans-adapt-rainfall-shortages-warming-world/

Published December 16, 2011

Flexible farming methods and the ability to quickly change tactics
to deal with unpredictable swings in rainfall will be vital if African
nations are to survive climate change in the coming decades,
scientists say.

"Adaptability I think will be the key," said Mark Mulligan, a
geographer at King's College London in the United Kingdom.
"There's the assumption that we know what the future will be like. We
do�more or less�for temperature, but we really don't for rainfall," he
said.

Global warming is expected to raise temperatures around the globe in
the coming decades. Perhaps less intuitively, it will also increase
rainfall in other parts of the world because as the temperature goes
up, evaporation speeds up, and the air's ability to retain moisture
rises.

More evaporation creates a hydrological cycle that is turbocharged
with energy, leading to more rainfall. However, the geographical
distribution of rainfall will change in a warmer world, greening some
current arid zones and triggering droughts in other areas such as the
American southwest.

See the global impact of your water footprint >>


Click to start interactive >>

Affecting Africa

According to a five-year global research project conducted on behalf
of the Consultative Group on International Agricultural Research
(CGIAR), climate change is expected to lead to unpredictable changes
in rainfall patterns in most African river basins.

This could present opportunities for improved agriculture in some dry
regions that get wetter, or�if farmers are not well prepared�could
lead to less food production and increased poverty as agriculture
struggles to adapt.

"Climate change introduces a new element of uncertainty precisely when
governments and donors are starting to have more open discussions
about sharing water resources and to consider long-term investments in
boosting food production," Alain Vidal, director of the CGIAR's
Challenge Program on Water and Food (CPWF), said in a statement.

"To help prevent this uncertainty from undermining key agreements and
commitments, researchers must build a reliable basis for decisions,
which takes into account the variable impacts of climate change on
river basins," Vidal said.

(Related: "India and Pakistan at Odds Over Shrinking Indus River")

To counter such uncertainty, nations must remain nimble and provide an
enabling environment for their farmers to adapt to a highly uncertain
and geographically variable �changescape,� said Mulligan, who was the
lead author of a report published in January in the journal Water
International that detailed the CGIAR findings.

"The key is to be thinking about flexible arrangements that are fine-
tuned to local geographical conditions and that can change quickly and
effectively as the future unfolds," Mulligan said.

"Because we've had 10,000 years of [climate] stability, we've grown
accustomed to assuming that things don't change and so we now support
very high populations that are dependent on sophisticated
agricultures, markets and infrastructures that may not adapt well to
the period of environmental instability that is ahead of us," he said.

"Bottom up" Solutions

For example, large dams that retain water to supply urban areas, for
irrigation projects, and to generate hydropower�of which there are at
least 36,000 around the world�are usually designed on the basis of
historical river flow data that climate scientists warn could become
obsolete in a warming world where river courses can change.

Because large dams are significant and long-term investments they
cannot easily be adapted to respond to the implications of changing
climate, Mulligan said.

A more flexible solution, he argues, is rainwater harvesting: the
construction of a series of small, farm-scale rainwater harvesting
schemes, or "micro-dams,� that capture rainfall for agricultural use
near the point at which it will be used rather than trapping it at a
single large dam and then pumping it elsewhere.

(Related: "See Spectacular Video of a Historic Dam Removal")

Also, because the pattern of rainfall change across Africa is
essentially unpredictable, CGIAR advocates a bottom-up approach to
adaptation, in which solutions are highly specific to local
geographical conditions rather than being defined on the basis of
regional or national-scale generalities.

The role of African governments, Mulligan said, will be to facilitate
locally driven adaptation and to stay out of the way of sustainable
development.

"The impact of climate change on water and food security will be
different in different parts of a river basin, even on different sides
of a hill," he added.

"So the real adaptation will have to come from the farmers up. They'll
be able to react in a way that is specific to their specific
environment and needs."
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Monday, December 19, 2011

Nile group calls for less hydro, more renewables

Appeal for support for the Nile Basin power initiative
http://www.esi-africa.com/node/13984

Kampala, Uganda --- ESI-AFRICA.COM --- 19 December 2011 - Civil
society organisations within the Nile basin initiative (NBI) have
challenged development partners and international financial
institutions to consider directing more support towards the
development of renewable energy in the region.

The civil societies under the umbrella body of the Nile Basin
Discourse [NBD] have also pushed for more capital injection into the
development of solar energy, wind and geothermal power, instead of
concentrating on hydroelectric power.

�Development partners are funding the multi-billion-dollar sub-region
hydro power and interconnection projects of the NBI countries. But 60%
of the local communities cannot be connected to this high voltage
grid,� said NBD vice-chairman Wesley Chirchir.

�Over-dependence on hydroelectric power may not produce any
significant impact because it is highly affected by changes in climate
and environmental degradation. In order for all communities to
benefit, let the implementing agencies and funders consider other
means of energy that are conducive for the local people,� reads part
of the recommendations.

Chirchir also called on development partners and international
financial institutions to include rural electrification projects in
their major interconnection power lines, as that would also take care
of the interests of the local communities.

These demands come at a time when NBI countries are close to
implementing the regional power trade programme, which aims to
facilitate the development of an integrated regional power grid inter-
connection to all its member states.

The NBI secretariat is already funding the construction of the US$450
million regional Rusumo Falls hydropower project, whose power lines
are in: Tanzania, Rwanda and Burundi.
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