Water resources management in the Central Asia region faces formidable challenges. The hydrological regimes of the two major rivers in the region, the Syr Darya and the Amu Darya, are complex and vulnerable to climate change. Water diversions to agricultural, industrial and domestic users have reduced flows in downstream regions, resulting in severe ecological damages.…
As much as the bottled water debate grows, it seems unlikely that any time in the near future, bottled water use will dramatically drop or stop altogether. The convenience of it and the lack of availability of water fountains and tap water when we might need it will continue to lead us to buy that…
Forecasts by the International Research Institute for Climate and Society and other institutions show that a weak El Niño has developed in the equatorial Pacific, and is likely to continue evolving with warmer-than-normal conditions persisting there until early 2010. What exactly is this important climate phenomenon and why should society care about it? Who will…
Early last month, I attended a meeting on Abrupt Climate Change in a Warming World. Climate Matters @ Columbia has discussed abrupt climate change before, referring to the hydrologic cycle, and with regards to melting sea ice or permafrost. Shifts in the earth climate are a known fact: crocodile-like reptiles lived in Greenland 55 million…
Our inability to predict policy outcomes was once again confirmed this week by the wildly popular Cash for Clunkers program. The program provides between $3,500 and $4,500 to anyone who trades in an older auto for a shiny new car that has better fuel efficiency. One billion dollars was originally allocated for the program, which…
The grass may be greener in Hawaii, but now so are its houses. Solar powered hot water heaters are now replacing electric heaters that burn fossil fuels, and in the process release harmful carbon and other greenhouse gas emissions that contribute to global warming. Hawaiian Electric Company is heavily encouraging all home owners to convert…
The state of Punjab, located in the northwest part of the country, is known as the breadbasket of India. Punjab produces 20% of the nation’s wheat, 11% of its rice, and 11% of its cotton, from only 1.5% of its geographical area. Punjab is in trouble, however; groundwater is rapidly decreasing. Water levels have dropped…
New York, NY, July, 2009. The Rockefeller Foundation is aiding sustainable development in metropolitan Nairobi, Kenya with a $400,000 grant to Columbia University’s Earth Institute aimed at supporting broad-based grass roots participation in the urban-planning process. The Earth Institute’s Center for Sustainable Urban Development (CSUD) will use the support to continue ongoing work with the…
Permafrost is ground that remains at or below freezing for two or more consecutive years (for great information on permafrost see the National Snow and Ice Data Center). Climate researchers worry that permafrost will thaw as temperatures rise due to climate change, releasing carbon dioxide and methane into the atmosphere. Two recent studies indicate that this concern…