Arizona
Warming world already causing dramatic changes, say scientists
NEWS: Fish, forests, birds and wildflowers affected by a wide range of impacts – human and natural – from global warming say researchers
America’s heartland wilts under climate change onslaught
NEWS: Researchers say US southwest is expected to become steadily more arid as planetary temperatures soar
Air conditioning units are cooking cities – report
NEWS: Heat from air conditioning systems now raises some urban temperatures by more than 1C, say Arizona scientists