TUCSON -- It is a warm and dry 'winter' in the Sonoran Desert this year. Very warm and dry. 81 on Christmas. A global warming winter.
05 was the hottest year on record and 06 may go higher. Summer (and Spring & Fall) this year may be killers, superhot, especially more at night with 'urban heat island' effect.
Global warming is a big threat to Arizona. Some places could become virtually unlivable much of the year. Water is already very limited, and more heat, agriculture, people and sprawl mean we'll use more precious H2O. Rivers will further suffer.
We are in for a wild hot ride in the future. At some point we won't be able to turn the A/C up high enough to escape.