When Erin Brockovich sued a major utility company in the 1990s for contaminating drinking water with hexavalent chromium, a toxic and carcinogenic metal, national attention turned to California.

From a distance, the Gile National Reserve in northern Mozambique is a vast, dense ocean of green that reaches as far as the horizon.

Sweden is facing an "extreme" risk of more wildfires in coming days because of hot and dry weather, authorities warned Monday, as dozens of fires raged across the Scandinavian country.

Harsh drought conditions in parts of the American West are pushing wild horses to the brink and spurring extreme measures to protect them.

Ancient communities transformed the Amazon thousands of years ago, farming in a way which has had a lasting impact on the rainforest, a major new study shows.

The global food system is unsustainable and urgently needs an overhaul.

Current crop yields could provide nutritious food for the projected 2050 global population, but only if we make radical changes to our dietary choices, a new study shows.

The air in the United States is much cleaner than even a decade ago.

Africa's ancient baobab, with its distinctive swollen trunk and known as the "tree of life," is under a new and mysterious threat, with some of the largest and oldest dying abruptly in recent years

For months, a major recycling facility for the greater Baltimore-Washington area has been facing a big problem: it has to pay to get rid of huge amounts of paper and plastic it would normally sell

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