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Study Provides Evidence That Low-Level Clouds Act as Positive Feedback to Climate Change

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Time series of annual mean values of cloud and climate quantities averaged over the NE Pacific. (A) Low-level stratiform clouds—which play an important climatic role because of their net cooling effect on the global climate—appear to dissipate as the ocean warms, thereby enhancing the warming (i.e., A) COADS cloud data. (B)

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Global study shows uneven urbanization among large cities in the last two decades

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Credit: The University of Hong Kong. The largest greening BUAs are Pearl River Delta (PRD), Tokyo, Yangtze River Delta (YRD), Miami, Beijing, Chicago, Seoul, Tianjin, São Paulo, and Osaka. By 2050, the global population is expected to soar to 9.7 billion, with 68% of the population living in urban areas.

Global 433
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Study Links Accelerating Uplift of Greenland to Accelerated Melting of Ice

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A study by a team of researchers from the Rosenstiel School of Marine and Atmospheric Science, University of Miami found that the acceleration of upward vertical motion of the rocky margins of Greenland indicates that accelerated ice loss in western Greenland started in the late 1990s.

Miami 207
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New Study Shows that Sea Level Rise Resulting From Collapse of West Antarctic Ice Sheet Would be Non-Uniform; Some Regions to See Levels Much Higher Than Previously Predicted

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Recent projections of sea-level rise after a future collapse of the West Antarctic Ice Sheet (for example, the Fourth Intergovernmental Panel on Climate Change Assessment Report) assume that meltwater will spread uniformly (eustatically) across the oceans once marine-based sectors of the West Antarctic are filled. Mitrovica et al.

Oregon 191
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Summer Update

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A large coalition has formed around the issues of national security, combating climate change, saving on fuel costs and increasing business for American agriculture. NGO's The campaign initially began by focusing on the 50 largest cities in the U.S., but it has grown far beyond this point.

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Study finds cities can reduce CO2 more easily from residential conservation than transportation

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A new study by a team from the University of Pennsylvania and MIT suggests it will be easier for cities to reduce CO 2 emissions coming from residential energy use rather than from local transportation. Changing circumstances could alter the model’s projections—e.g., a rapid electrification of the automobile fleet.