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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. Specific projections include: Projected median percentage precipitation change (of 112 climate projections) over the Western United States, 2070–2099 relative to 1950–1979.

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

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Earlier observations from satellites and balloons suggest that stratospheric water vapor probably increased between 1980 and 2000, which would have enhanced the decadal rate of surface warming during the 1990s by about 30% compared to estimates ignoring this change, according to the authors. —Solomon et al. —Solomon et al.

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Improved measurements of sun to advance understanding of climate change

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Scientists have taken a major step toward accurately determining the amount of energy that the sun provides to Earth, and how variations in that energy may contribute to climate change. W m -2 established in the 1990s, which energy balance calculations and climate models currently use.

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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 also comes on the heels of a major study of the Colorado River Basin by the US Department of Interior that projected longer and more severe droughts by 2060, and a 9% decline in the Colorado’s flows.

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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.

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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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NOAA study: Increase in stratospheric aerosols has offset some recent climate warming

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A recent increase in the abundance of particles high in the atmosphere has offset about a third of the current climate warming influence of CO 2 change during the past decade, according to a new study led by NOAA and published in the online edition of Science. —John Daniel.

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