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UCLA/LLNL study concludes most climate models overestimate increase in global precipitation due to climate change

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UCLA and Lawrence Livermore researchers have found that most climate models overestimate the increase in global precipitation due to climate change. Conveniently, this quantity can be measured from space, allowing the team to assess how well the models capture the physics controlling changes in global precipitation.

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Global Carbon Project: Global carbon emissions growth slows, but hits record high

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Driven by rising natural gas and oil consumption, levels of CO 2 are expected to hit 37 billion metric tons this year, according to new estimates from the Global Carbon Project (GCP), an initiative led by Stanford University scientist Rob Jackson. and China account for more than half of all carbon dioxide emissions globally.

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Rapid Ecosystem Changes in Arctic Associated with Climate Change May Foreshadow Global Environment of the Future

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The rapid recent climate change in the Arctic has “ severely perturbed ” Arctic ecosystems and the trophic relationships that structure them, according to a paper published 11 September in the journal Science by an international team of 25 scientists. Heterogeneity as a buffer against climate change in the Arctic.

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New modeling study finds thawing permafrost could release vast amounts of carbon and accelerate climate change by the end of this century

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Billions of tons of carbon trapped in high-latitude permafrost may be released into the atmosphere by the end of this century as the Earth’s climate changes, further accelerating global warming, a new computer modeling study indicates. The control simulation on the left did not include permafrost processes. —Charles Koven.

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Scientists call for careful use of time scales, reference dates and statistical approaches in analyzing climate change trends to avoid distortion and hampering of response

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Demonstrating that the use of different time scales, reference dates, and statistical approaches can generate highly disparate results in climate reports, scientists at the University of Alaska Anchorage argue that careful use of these tools is critical for correctly interpreting and reporting climatic trends in Alaska and other polar regions.

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State Department issues Draft Supplemental Environmental Impact Statement on Keystone XL Pipeline: climate change impacts

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Comparison of proposed Keystone XL route to previously proposed project segment. Aside from the potential construction and spill impacts of the pipeline, the scope of the climate change impacts have become the most contentious and politicized issue surrounding the pipeline. Source: Draft SEIS. Click to enlarge. Market analysis.

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World Bank report examines likely impacts and risks associated with a 4 °C global warming within this century

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A new report commissioned by the World Bank, and prepared by the Potsdam Institute for Climate Impact Research (PIK) and Climate Analytics, provides a snapshot of recent scientific literature and new analyses of likely impacts and risks that would be associated with a 4 °C global warming within this century.