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US: ethanol crops displace climate-friendly ones

US: ethanol crops displace climate-friendly ones

The U.S. Environmental Protection Agency says that corn ethanol _ as made today _ has a worse impact on climate than gasoline when land use changes are considered.
But EPA Administrator Lisa Jackson said Tuesday that future improvements in production technologies are expected to make ethanol and other biofuels more climate friendly than gasoline. The EPA, in a preliminary assessment of ethanol, said worldwide changes in land use must be considered when assessing ethanol's impact on climate change.
Some scientists say that by using more land to grow ethanol crops, there is an increase in greenhouse gases as vegetation that absorbs carbon is replaced.
Meanwhile, President Barack Obama issued a directive to find ways to get automakers to make more cars that can run on ethanol and to make ethanol more widely available at fueling stations.


Updated : 2020-12-04 20:05 GMT+08:00