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

Green Car Congress

UCLA and Lawrence Livermore researchers have found that most climate models overestimate the increase in global precipitation due to climate change. Because this acts as such a strong lever on global precipitation changes, the models are likely overestimating the increase in global precipitation with global warming.

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CMU study finds taxes on emissions would result in more rapid electrification by ridesharing companies

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Researchers at Carnegie Mellon’s College of Engineering have found that with an emissions-based incentive towards electrification, ridesourcing companies such as Uber and Lyft would electrify more and cut their emissions by amounts ranging from 10% in New York to 22% in Los Angeles. —Bruchon et al.

Tax 199
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Oregon transit district buying 11 New Flyer electric buses and 7 ABB depot chargers

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Since then, LTD hired a Sustainability Program Manager and conducted carbon footprint analysis of its operations to measure the impacts and benefits of public transit on climate change.

Oregon 312
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Urgent: Assemblymember Chris Holden Trying to Kill California’s 100% Renewable Climate Bill, #ChangeTheClimate, #SB100

Creative Greenius

We need more aggressive cuts in emissions to get us anywhere near the pathways that limit the worst impacts of climate change. California must continue its strong climate leadership if we are to have any hope to reduce our greenhouse gas emissions in time to keep the climate safe, which is vital, because….

Climate 170
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UCR study finds ultra-low emission natural gas bus exceeds federal and state NOx standards; as low as 0.0007g/bhp-hr

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A study by the University of California, Riverside College of Engineering Center for Environmental Research and Technology (CE-CERT) found that a Los Angeles County Metropolitan Transit Agency (Metro) bus equipped with an ultra-low emission natural gas engine performs significantly cleaner than its certification standards across all duty cycles.

Standards 199
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US National Research Council reiterates need for action in US to limit magnitude of climate change; final volume in Americas Climate Choices

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Illustration of the steps in an iterative risk management approach for addressing climate change. From: America’s Climate Choices. This trend cannot be explained by natural factors such as internal climate variability or changes in incoming energy from the sun. Click to enlarge. Earlier post.).

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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 study expands on findings published in 2007 in the journal Science that the American Southwest is becoming more arid as temperatures rise and rainfall patterns shift. Drying is expected in all three regions, as warmer temperatures trigger more evaporation, even in places that may see greater seasonal rain or snowfall, the study found.

Colorado 247