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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. an 8 to 20% decrease in average annual stream flow in several river basins, including the Colorado, the Rio Grande, and the San Joaquin. Source: DOI. Click to enlarge. Click to enlarge.

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Study casting doubt on GHG benefits of corn stover ethanol draws sharp criticism by other researchers; Liska responds

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A study published earlier this year in the journal Nature Climate Change that cast doubt on whether biofuels produced from corn residue could meet federal mandates for cellulosic biofuels to reduce greenhouse gas emissions by 60% compared to gasoline ( earlier post ) has drawn critical response published as correspondence in the same journal.

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Denver RTD orders 17 New Flyer electric buses

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The order, supported by local and federal funds, helps RTD meet sustainability goals outlined in the Colorado Climate Action Plan to mitigate climate change impact through elimination of statewide greenhouse gas emissions by 26% by 2025, 50% by 2030, and 90% by 2050.

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Ballard and Anglo American Platinum partner on a range of fuel cell applications in South Africa

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The companies deployed and demonstrated a 150 kW fuel cell system near the 17 th Conference of the Parties (COP17) to the United Nations Framework Convention on Climate Change held in Durban, South Africa in late-2011. COP17 was a high-level summit on climate change.

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Analysis of Arctic Sediments Show that Late 20th Century Warming is Unlike Natural Variation; Unprecedented Change

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An analysis of sediment cores from an Arctic lake indicates that biological and chemical changes occurring there are unprecedented over the past 200,000 years and likely are the result of human-caused climate change, according to a new study led by the University of Colorado at Boulder. PNAS doi: 10.1073/pnas.0907094106.

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Study on Greenhouse Gas Emissions from Global Cities Highlights Importance of Geophysical and Technical Factors

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An international study of 10 global cities found that a balance of geophysical factors (climate, access to resources, and gateway status) and technical factors (power generation, urban design, and waste processing) determine the greenhouse gas emissions (GHGs) attributable to cities. Timothy Hillman, University of Colorado.

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Stanford launches major new natural gas research initiative

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Stanford University has launched a new research initiative to study comprehensively the development and use of natural gas. The new program will expand Stanford’s research on energy and the environment by focusing additional resources on the growing importance of natural gas. —Mark Zoback.

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