western states us

Fires, then floods: Risk of deadly climate combination rises

A new study found that the dangerous pairing of disasters may become more common in the American West as rains trigger runaway surges of mud and debris in areas damaged by wildfire.
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PFAS in food

IN-DEPTH: What we know about PFAS in our food

Amid inadequate testing and a lack of regulation, we’re all eating “forever chemicals.”

invasive species

Peter Dykstra: American Invasive Species Hall of Fame, part 1

Flora and fauna that have left their mark.

Global Warming: Why the problem is worse – and solutions simpler – than you thought

Global Warming: Why the problem is worse – and solutions simpler – than you thought

Noted ecologist John Harte offers a fresh take on the dire topic of climate change.

ryan zinke

Peter Dykstra: Low crimes and misdemeanors

Multiple ethical violations used to mean bipartisan disdain. Now you get sent to Congress.

PFAS Testing

Investigation: PFAS on our shelves and in our bodies

Testing finds concerning chemicals in everything from sports bras to ketchup, including in brands labeled PFAS-free.

PCB pollution

Most of the world agreed on safe PCB waste disposal. It’s not going great—especially in the US.

Just 13% of countries in the Stockholm Convention have disposed of the toxics according to global environmental standards.