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In a changing climate, erratic rainfall poses growing threat to rural poor

ScienceDaily (September 6, 2010)

In a changing climate, erratic rainfall poses growing threat to rural poor

ScienceDaily (September 6, 2010)

Against a backdrop of extreme weather wreaking havoc around the world, a new report warns that increasingly erratic rainfall related to climate change will pose a major threat to food security and economic growth, especially in Africa and Asia, requiring increased investment in diverse forms of water storage as an effective remedy.

In response to increased demand for food and power supplies, the governments of developing countries with fast-growing economies have invested heavily in large dams during the current decade, ending a 10-year lull in their construction. Many of the 50,000 large dams built worldwide since the 1950s are intended to store water for irrigation.

The positive effects of such infrastructure development, in terms of flood control and improved agricultural productivity, are well documented, the IWMI report explains. But so are the adverse social and environmental impacts, including displacement of up to 80 million people from their homes and disruption of the livelihoods of some 470 million people living downstream from dams as a result of altered river flows. As acrimonious debate about large dams continues, IWMI’s advice for governments is to do a better job of analyzing the potential benefits for economic development and poverty reduction and to pay more serious attention to the social and environmental consequences.

Story Source

The above story is based on materials provided by Burness Communications.

Pour en savoir plus (ScienceDaily)

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