Archive for February, 2012

Humans change the world! What drought are you talking about?

Humans change the world! What drought are you talking about? A drought is a period of unusually persistent dry weather that persists long enough to cause serious problems such as crop damage and or water supply shortages. The severity depends upon the degree of moisture deficiency, the duration, and the size of the affected area. The major effects of climate change on water systems take place through changes in the hydrological cycle, basically the balance between temperature, and rainfall. Whilst some regions may have higher rainfalls this can evaporate through sustained increases in temperature... Read more [...]

Humans Change the World! Where do we stand with fresh water? Will there be enough for a more crowded world?

Sandra Postel, founder of the Global Water Policy Project, is recognized as one of the world's most respected authorities on fresh water issues and is hailed for her "inspiring, innovative, and practical approach" to promoting the preservation and sustainable use of Earth’s freshwater. For more than 25 years, Postel has lectured, taught, and written prolifically on the geography of water stress and the implications for food and agriculture... Read more [...]