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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. 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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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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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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Field study finds soot particles absorb significantly less sunlight than predicted by models; climate models may be overestimating warming by BC

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Although viewed as a potential target in the global effort to reduce climate change, atmospheric black carbon particles absorb significantly less sunlight than scientists have predicted, according to a new study by an international team of researchers, published in the journal Science. Earlier post.).

Climate 261
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Arizona State Students Develop a Solar-Powered Air Filtration System

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A team of students from the Fulton Schools of Engineering at Arizona State University is helping to improve the air quality for nomadic communities in Mongolia. Warudkar is an associate aeroelasticity engineer at Virgin Galactic , in Los Angeles. It is the most rewarding experience we have had.”

Arizona 121
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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. Julia Steinberger, University of Klagenfurt.

Emissions 199