Adaptation to climate change is target of WWF publications


WWF provides lessons and guide to climate adaptation for freshwater wetlands

Recently WWF published two reports, one on lessons from field projects (two involving Ramsar sites) and a guide to climate adaptation for freshwater wetlands. Both reports can be downloaded from:

Managers and stakeholders in freshwater systems need to stop talking about adaptation to climate change and start doing it, WWF says. The Ramsar International Organisation Partner presented a series of case studies from four continents showing that measures to improve the health of stressed water systems now would improve their ability to cope with projected climate impacts in the future.

"There are no regrets to many of the actions we can take now," said WWF freshwater researcher Jamie Pittock. "We are talking about improving river management and restoring the flood holding and drought proofing services of flood plains and wetlands, all of which can be shown to have short-term economic, social and environmental pay-offs.

"The fact that they help climate-proof our river basins now is an added benefit."

Launching the new WWF report Water for life: Lessons for climate change adaptation from better management of rivers for people and nature at World Water Week, Mr Pittock said climate adaptation strategies that neglected freshwater systems were asking for trouble.

"Setting biofuel targets without considering where the water to grow biomass crops will come from is a recipe for a worsening water crisis in many regions and freshwater systems less able to cope with extreme weather events," Mr Pittock said.

"More dams for hydropower is a recipe for even more fragmented rivers that will inhibit freshwater species - the food for millions - adapting to climate impacts by migrating up or down river systems."

WWF field studies show that work already begun on opening up Danube River floodplains and wetlands and reconnecting lakes to the river is improving fishing and drinking water availability, bringing back birds and reducing vulnerability to floods.

"Restoration of the 37 sites that make up the Lower Danube Green Corridor is estimated to cost €183 million, compared to damages of €396 million from the 2005 flood and likely earnings of €85.6 million per year," Mr Pittock said. "This is adaptation to climate impacts even if it is not planned or labeled as adaptation."

Perennial flows in Tanzania's Great Ruaha River stopped in 1993 after years of declining rainfall and increasing water extractions, putting at risk important hydropower generation and tourism and reducing livelihoods for low income upstream and downstream communities.

The establishment of local water users associations and their work in restoring catchments, rescheduling diversions by major agricultural enterprises and the shutting off of illegal diversions resulted in year round river flows to the important Ihefu wetlands beginning again in 2004, with improved water security and livelihood opportunities to local communities.

Restoration of silted-up and abandoned water tanks used from around 1200 years ago to collect monsoon waters in a tributary area of India's Godavari River is lifting depleted groundwater levels, bringing dried out wells back into service and improving soil fertility and crop yields for disadvantaged farmers. Scaling up the project to cover all tanks in the area would cost $US 635 million to store about the same amount of water as a projected dam project costing $US 4 billion with significant adverse social and environmental impacts.

"This is adaptation that involves and respects the needs of local communities and people and provides immediate benefits", Mr Pittock said.

And in China's central Yangtse, WWF began working with local communities in 2002 to reconnect lakes and wetlands to absorb flood flows and counter sever pollution linked with increased heat and droughts.

Other benefits have been an increased variety and quantity of fish and improved access to safe water for communities.

"Our studies show that it is often a disaster that leads to the river restoration activities that will increase resilience to climate impacts," Mr Pittock said. "It would make more sense to avoid or reduce the impact of disaster by restoring and strengthening our river systems now. Global lessons derived from the six case studies are:

i.    Start “no regrets” adaptations that have multiple benefits now;
ii.    Better communication of adaptation is needed to encourage local actions;
iii.    Local ownership is key to adaptation effectiveness;
iv.    Immediate benefits motivate local stakeholders and engender support for more challenging measures;
v.    Adaptive management is an iterative process that takes years;
vi.    Effective adaptations link local to national to global actions;
vii.    Post disaster policy reform windows should be seized;
viii.    Modest funding is required for adaptation, environmental restoration adaptations can be cheaper than infrastructure interventions.

WWF also released an overview on climate change adaptation for freshwater systems, as a guide to planners and managers.

The author of the guide, Dr John Matthews, said "Uncertainty is no reason for not acting on climate change impacts on vital water systems. We are certain there will be significant impacts even if we can't put as many decimal points on them as we would like to." The guide recommends seven elements of an adaptive water strategy that governments and societies should apply now:

i. Develop institutional capacity;
ii. Create flexible water allocation systems and agreements;
iii. Reduce external non-climate pressures;
iv. Help species, human communities and economies move their ranges;
v. Think carefully about water infrastructure development and management;
vi. Institute sustainable flood management policies;
vii. Support climate-aware government and development planning.

Water birds on a restored village tank in India. Local rainwater harvesting is one example of the climate adaptation that minimize impacts on wetlands that are highlighted in WWF's reports. © J. Pittock.

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