Global warming: heat causes drought

1. Global warming:heat causes drought By Robert Lonie

2. Drought • A drought is an extended period of months or years when a region notes a deficiency in its water supply whether surface or underground water. Generally, this occurs when a region receives consistently below average rainfall. It can have a substantial impact on the ecosystem and agriculture of the affected region. Although droughts can persist for several years, even a short, intense drought can cause significant damage and harm the local economy. • This global phenomenon has a widespread impact on agriculture. Lengthy periods of drought have long been a key trigger for people leaving and played a key role in a number of ongoing migrations and other humanitarian crises in the Horn of Africa.

3. Lake Mead after 11 years of drought • After 11 years of drought, water levels at Lake Mead are at risk again this winter of dropping further, a UCLA study predicts.

4. http://environment.nationalgeographic.com/environment/freshwater/freshwater-quiz-climate-change/http://environment.nationalgeographic.com/environment/freshwater/freshwater-quiz-climate-change/

5. Australia drought

6. “Droughts occur when a long period passes without substantial rainfall. A heat wave combined with a drought is a very dangerous situation.”

7. DROUGHT • Facing dire warnings that Falls Lake could go dry this summer or fall, at least one member of Raleigh’s City Council is thinking about the previously unthinkable — whether the fast-growing city needs a temporary growth moratorium. • In a terse exchange during a Tuesday meeting about the drought, City Council member Rodger Koopman raised the idea of a pause in building.