greenhouse gas emissions


Photo: Staff Sgt. Jason Colbert, US Air Force

Vehicle Fuel Economy Standards—Under Fire?

Dr. Kate Whitefoot, , UCS

Last year, transportation became the sector with the largest CO2 emissions in the United States. While the electricity industry has experienced a decline in CO2 emissions since 2008 because of a shift from coal to natural gas and renewables, an equivalent turnaround has not yet occurred in transportation. Reducing emissions in this sector is critical to avoiding the effects of extreme climate change, and the Corporate Average Fuel Economy (CAFE) and Greenhouse Gas (GHG) emissions standards are an important mechanism to do so. Read more >

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‘Little’ Errors Add Up: What an Electric Vehicles Study Gets Right, and What It Gets Wrong

, senior engineer, Clean Vehicles

A new study by consulting firm Arthur D. Little (ADL) claims that the benefits of electric cars, both environmental and economic, are lower than others, including UCS, have shown. However, the differences are largely due to questionable assumptions about battery replacements and the use of electric vehicles as a gasoline car replacement. Read more >

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Photo: Paulo Brando

Deforestation in the Brazilian Amazon in 2016: the Lazy Dragon Woke Up

Paulo Moutinho, Ph.D., and Raissa Guerra, Ph.D., , UCS

In Brazil, deforestation in the Amazon has been compared to a starved dragon. However, this dragon has been under control in the past. Deforestation in the region declined 70% from 2005 (19,014 km2) to 2014 (5,012 km2) in response to different strategies described in the literature. But the monster was not killed, it was just taking a nap. Read more >

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