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Environment

The solution flowing through the Keystone pipeline isn't just crude oil. Scientists are now learning what that means for spills.

Brian Owens, Contributor

Nitrogen isotopes show how nutrients leach out of septic tanks and into pond ecosystems.

Nala Rogers, Staff Writer

Morning light over the city skyline of Copenhagen with a power plant in the background.

Sediment core from a Copenhagen lake tells the story of the Industrial Revolution.

Nala Rogers, Staff Writer

Short-lived chemicals not covered by international treaty may travel fast enough to harm Earth's protective ozone layer.

Nala Rogers, Staff Writer

Tornadoes and flash floods can happen at the same time, but safety instructions for each one is the opposite.

Emilie Lorditch, Staff Writer

Mass migration to Chinese cities has likely decreased the total number of premature deaths caused by air pollution.

Yuen Yiu, Staff Writer

Hundreds of U.S. streams may have significant levels of endocrine-disrupting chemicals from treated wastewater.

Nala Rogers, Staff Writer

Wetlands can form in overlooked spaces, and that might be a good thing.

Olivia Trani, Contributor

NASA prepares to replace the twin satellites, named GRACE, that have monitored Earth's droughts, glacial retreats and sea level rise for the last 15 years.

Yuen Yiu, Staff Writer

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