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EPA: US GHG emissions up 6% in 2021 from 2020

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million metric tons of carbon dioxide equivalents, or 5,586.0 million metric tons of carbon dioxide equivalents after accounting for sequestration from the land sector—representing a 6% increase from 2020. This report has been compiled annually since 1993 and submitted to the United Nations Framework Convention on Climate Change.

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California ARB: GHG emissions fell below 1990 levels for first time in 2016; down 13% from 2004 peak; transportation emissions up 2%

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The California Air Resources Board (CARB) announced that greenhouse gas emissions in California in 2016 fell below 1990 levels for the first time since emissions peaked in 2004—a reduction roughly equivalent to taking 12 million cars off the road or saving 6 billion gallons of gasoline a year.

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New phase of globalization could undermine efforts to reduce CO2 emissions

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A new study finds that the growth of carbon production from Chinese exports has slowed or reversed, reflecting a “new phase of globalization” between developing countries that could undermine international efforts to reduce emissions. The paper is published in Nature Communications.

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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. Since 2004, NFI has delivered 50 buses to LTD, including New Flyer transit buses and low-floor cutaway buses from NFI sister company ARBOC.

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Study finds 12-30% fuel consumption gap between certified and real-world use in China

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Since carbon dioxide emissions are highly correlated with fuel consumption (FC), fuel consumption regulation is a useful policy instrument to combat climate change.

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UN Review of Recent Climate Research Concludes That Impacts Of Climate Change Coming Faster Than Anticipated

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Significant climate anomalies 2008/2009. Source: Climate Change Compendium. Ocean acidification caused by the absorption of carbon dioxide in seawater is already increasing along the California coast decades earlier than existing models predict. Click to enlarge. Earlier post.). Earlier post.).

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Waste gasification company Sierra Energy closes $33M Series A funding; FastOx

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At the lowest point of the gasifier, the waste is reduced to carbon char, inorganic materials, and metals. Injected oxygen and steam react with the carbon char to produce a synthesis gas (syngas), comprised predominately of carbon monoxide and hydrogen. Sierra Energy was founded in Davis, California in 2004.

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