All that feed corn and all those soybeans—and those nearly 25 million hogs—produce a lot of nitrate. It’s making Iowans sick ...

The ocean has been a patient teacher. But this lesson — about irreversible tipping points and cascading collapse — is one we ...

Cyanobacteria is widespread in the lake and other waterbodies across the region, but when warm, still, nutrient-rich (read: full of phosphorus) water induces a proliferation of the microscopic algae, ...

The world has reached its first climate tipping point, with coral reefs in widespread, irreversible collapse, and unless ...