July 25, 2014--Groundwater levels drop in Southwestern U.S. in ongoing drought (Reuters)

Underground stores of water in the southwestern United States have receded dramatically amid ongoing drought that has parched states from Oklahoma to the Pacific Coast and is costing California billions in lost crops and jobs, a new study shows.

July 11, 2013--Climate change's heat intensifies drought in the USA (USA Today)

While drought has several causes, climate scientists say global warming is a long-term contributor that could be exacerbating current conditions, especially in the already-arid Southwest. They say it will likely do more damage in the future. Why? Higher temperatures cause more water to evaporate, and unless there's enough rain to offset it, the ground dries up. More heat is on the way, too.

March 11, 2013--Monsoon failure key to long droughts in southwest (Science Daily)

Long-term droughts in the Southwestern North America often mean failure of both summer and winter rains, according to new tree-ring research from a University of Arizona-led team. The finding contradicts the commonly held belief that a dry winter rainy season is generally followed by a wet monsoon season, and vice versa.

February 26, 2012--Arizona researchers say more mega-fires all but certain (Summit Voice)

A study of lakebed charcoal sediments enabled Northern Arizona University researchers to establish a baseline of fire activity in the Southwest going back 3,000 years, showing links between wildfires and climate, as well human activity. Ultimately the researchers concluded that there is a significant wildfire deficit in the Southwest, mainly due to the decades-long focus on fire suppression.

April 25, 2011--A 21st-century water forecast (New York Times)

The broad-brush conclusion of a new federal report on the future impact of climate change on water in the West is a bit familiar. Throughout the West, there will be less snow, and what snow there is will melt faster. The dry Southwest is going to get drier, and the wet Northwest wetter.

February 12, 2011--New tree ring study pinpoints ancient mega-droughts (Summit Voice)

A new tree ring study spanning more than 1,200 years is helping archaeologists pinpoint the exact dates of ancient mega-droughts that may have been key factors in the decline of major pre-Hispanic cultures in Mexico and Central America.

February 11, 2011--Southwestern water: Going, going, gone? (New York Times)

The glum projections of the growing gap between demand for water in the Southwest and the dwindling supplies have never been optimistic, but two new studies— one a research report based on satellite data, and the other an analysis of rainfall, water use and the costs associated with obtaining new water — make earlier forecasts seem positively rosy.

September 28, 2010--Water Use in Southwest Heads for a Day of Reckoning (New York Times)

A once-unthinkable day is looming on the Colorado River. Barring a sudden end to the Southwest’s 11-year drought, the distribution of the river’s dwindling bounty is likely to be reordered as early as next year because the flow of water cannot keep pace with the region’s demands.

September 17, 2010--Southwest already hit hard by climate change (Summit Voice)

The Southwest is showing more signs of climate change than any other part of the country, a pair of climate experts say, calling for a no-regrets strategy in the face of global warming. The strategy was detailed in the journal Science to prepare residents for hotter and drier conditions.

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