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Study finds Colorado River Basin’s worst known megadrought was 1,800 years ago

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The ongoing severe drought in the Colorado River Basin has led to the river flowing at 84% of its historic average flow. The new study used tree-ring data and other climate records to identify a drought period unmatched in severity by the current drought or other ancient droughts. Gangopadhyay, S., Woodhouse, C. McCabe, G. Routson, C.

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US DOI report highlights impacts of climate change on Western water resources

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Projected median temperature change in °F (of 112 climate projections) over the Western United States, 2070–2099 relative to 1950–1979. The report, which responds to requirements under the SECURE Water Act of 2009, details several increased risks to western United States water resources during the 21 st century.

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Study Finds Stratospheric Water Vapor Is An Important Driver of Decadal Global Surface Climate Change

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Decadal warming rates arising from (i) greenhouse gases and aerosols alone (black); (ii) that obtained including the stratospheric water decline after 2000 (red); and (iii) including both the stratospheric water vapor decline after 2000 and the increase in the 1980s and 1990s (cyan). Stratospheric water vapor and radiative processes.

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Heat Pumps Take on Cold Climates

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Twenty homes scattered across Canada and the northern United States are keeping warm this winter using prototypes of the latest iteration in residential heating systems: cold climate heat pumps. To prove it, eight manufacturers are publicly testing their prototypes in the Cold-Climate Heat Pump Technology Challenge , hosted by the U.S.

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Researchers use IPCC AR5 models to forecast 10% drop in Colorado River flow in next few decades

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The Colorado River Basin encompasses much of the American West, covering parts of seven US states and two states in Mexico. It may not sound like a phenomenally large amount except the water and the river is already over-allocated. Population growth in the Southwest is putting added pressure on regional water resources.

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Study Concludes Colorado River Reservoirs Could Bottom Out from Warming, Water Management Business-as-Usual

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Colorado River Basin including major dams. Inset (a) shows water demand and losses and supply. All reservoirs along the Colorado River might dry up by mid-century as the West warms, according to a new study led by researchers at the University of Colorado, Boulder. Source: AGU. Click to enlarge. Rajagopalan et al.

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Study Finds Indian Ocean Sea-Level Rise Threatens Coastal Areas; Climate Change Partly Responsible

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The study, led by scientists at the University of Colorado at Boulder (CU) and the National Center for Atmospheric Research (NCAR) in Boulder, Colo., finds that the sea-level rise is at least partly a result of climate change. 2010) Patterns of Indian Ocean sea-level change in a warming climate. Credit: NASA.