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'Brown Clouds' Are World's Newest Environmental Threat By TINI TRAN AND JOHN HEILPRIN / AP WRITER Friday, November 14, 2008 BEIJING - A dirty brown haze sometimes more than a mile thick is darkening skies not only over vast areas of Asia, but also in the Middle East, southern Africa and the Amazon Basin, changing weather patterns and threatening health and food supplies, the UN reported. The huge smog-like plumes, caused mainly by the burning of fossil fuels and firewood, are known as "atmospheric brown clouds." Cars drive through thick smog on a street in Beijing in September 2008. Enormous brown clouds of pollution hanging over Asia are killing hundreds of thousands of people, melting glaciers, changing weather patterns and damaging crops, the United Nations said. (Photo: AFP) When mixed with emissions of carbon dioxide and other gases blamed for warming the earth's atmosphere like a greenhouse, they are the newest threat to the global environment, according to a report commissioned by the UN Environment Program and released Thursday. "All of these points to an even greater and urgent need to look at emissions across the planet," said Achim Steiner, head of Kenya-based UNEP, which funded the report with backing from Italy, Sweden and the United States. Brown clouds are caused by an unhealthy mix of particles, ozone and other chemicals that come from cars, coal-fired power plants, burning fields and wood-burning stoves. First identified by the report's lead researcher in 1990, the clouds were depicted Thursday as being more widespread and causing more environmental damage than previously known. Perhaps most widely recognized as the haze this past summer over Beijing's Olympics, the clouds have been found to be more than a mile (kilometer) thick around glaciers in the Himalaya and Hindu Kush mountain ranges. They hide the sun and absorb radiation, leading to new worries not only about global climate change but also about extreme weather conditions. "All t

"China: a decade of change - interactive timeline As the communist party prepares for a changing of the guard, we look at the key events in the last 10 years that have shaped the world's most populous country. A next generation of politicians will be facing entirely new challenges across all sectors, from the economy to civil unrest. Scroll through the timeline to explore the defining moments of the first decade of the 21st century"

We all know that adapting to climate change is going to cost us -- but that doing nothing will ultimately cost us even more -- however, a new report from the International Institute for Environment and Development says that the real costs of adaptation are likely to be 2-3 times greater than those estimated by the UN Framework Convention on Climate Change :

human impacts of climate change - not strictly on the syllabus but interesting nonetheless could be good to use as an example of forced migration though

allows users to create animated visualizations of development data. To use Better World Flux (no registration required) all you have to do is select a data set from the menu provided and select a country or countries from the menu provided. From there Better World Flux creates an animated data visualization for you. The visualization will change as the years on the timeline at the bottom of the visualization change. This way users can see growth and recession of a statistic over time.

Aims of this lesson: To examine the changing importance of other energy sources. Redeveloped March 2012

Updated Dec 2011

"9 Maps to Change How You See the World"

Climate change: a development challenge Climate change: building the resilience of poor rural communities Desertification Fighting water scarcity in the Arab countries Fighting rural poverty: the role of ICTs Food prices: Smallholders can be part of the solution The future of world food security Land tenure security and poverty reduction Linking land and water governance Remittances Rural finance: Small amounts making a big difference Women

Climate change in Malawi is pushing people further into poverty and women are suffering most, according to our new report (Wed June 17).

Migration and displacement, caused by climate change, could vastly exceeds anything that has occurred before, according to a report launched today. Whole human populations may be forced to move for their own survival.

Climate change photos in the Nepalese mountains before and after

The Indonesian Maritime Minister's proposal comes as a report this week reinforces the need to accommodate forecast increasing numbers of people displaced by climate change

high-powered group of senior Republicans and Democrats led two missions to China in the final months of the Bush administration for secret backchannel negotiations aimed at securing a deal on joint US-Chinese action on climate change, the Guardian has learned.