Yale University

A Japanese steel giant has pledged billions in new investment in Pennsylvania’s Monongahela River Valley, raising hopes that it would clean up pollution from its steel mills in the region. But documents show that its plans to ramp up production will worsen local air quality.

Region - North America, page 54

Last year, the acreage burned in the Brazilian Amazon reached its lowest level in at least four decades.

Warming has brought extreme rainfall to the parched Sahel, which is seeing aquifers refill as monsoons grow stronger. But heavier downpours alone cannot explain the groundwater revival, say hydrologists, who believe efforts to harvest rain, along with tree-planting projects, may be paying dividends.

The use of small, controlled burns to clear out flammable underbrush has saved thousands of giant sequoias from devastating wildfires, new research finds.

Fatal Detonation of WWII Explosive in Indonesia Linked to Illicit Fishing

Since the colonial era, India has regarded its native scrublands and savannas as little more than degraded forest. Now, amid a growing recognition of rangelands globally, officials are working to map the nation's ailing grasslands, with a view to restoring these vital ecosystems.

In an Already Broiling Summer, El Niño Is About to Turn Up the Heat

For 50 years, the Endangered Species Act has defined "harm" as not just injury to individuals but to the habitat on which they depend. By narrowing that definition, the Trump administration is leaving hundreds of species at risk of extinction.

Region - North America, page 50