If the world is to have another Green Revolution to feed its soaring population, it must be far more sustainable than the first one. That means finding ways to boost yields with less fertilizer and rethinking the way food is distributed.

Subsistence hunters in the Arctic have long taken to the sea ice to hunt seals, whales, and polar bears. But now, as the ice disappears and soaring temperatures alter the life cycles and abundance of their prey, a growing number of indigenous communities are facing food shortages.

In the wake of the Paris climate agreement, developing countries find themselves in need of analysts capable of monitoring their emissions. It’s a complex task, but organizations are stepping in with online courses to train these new green accountants.

Development pressures are threatening Istanbul's centuries-old gardens, which have produced food for the city's markets since Byzantine times. A coalition of gardeners and environmentalists is fighting to preserve them.

With the recent opening of a “bike highway,” Germany is taking the lead in Europe by starting to build a network of wide, dedicated bicycle thoroughfares designed to lure increasing numbers of commuters out of their cars and onto two wheels.

The U.S. Supreme Court order blocking President Obama’s plan to cut emissions from coal-burning power plants is an unprecedented step and one of the most environmentally harmful decisions ever made by the nation’s highest court.

Europe and the United States have very similar standards of living, but significantly different carbon footprints. Aerial photographer Alex MacLean documents this phenomenon in images that show how Northern Europe uses smart design and planning to reduce the amount of carbon it emits.

An unprecedented global wave of virulent fungal infections is decimating whole groups of animals — from salamanders and frogs, to snakes and bats. While scientists are still trying to understand the causes, they are pointing to intercontinental travel, the pet trade, and degraded habitat as likely factors.

Mexican scientists are striving to plant oyamel fir trees at higher altitudes in an effort to save the species, as well as its fluttering iconic winter visitor — the migrating monarch butterfly — from the devastating effects of climate change.

In what could be a turning point, the world’s nations reached an agreement in Paris that would commit them to cutting emissions and keeping global warming below 2 degrees. Although the pledges are not binding, the deal includes a review process to determine if countries are meeting their commitments.

High-tech batteries may be garnering the headlines. But utilities from Spain to China are increasingly relying on pumped storage hydroelectricity first used in the 1890s to overcome the intermittent nature of wind and solar power.

It took a committed coalition and the increasingly harsh reality of climate change to push President Obama to reject the Keystone XL pipeline. But sustained public pressure will now be needed to force politicians to take the next critical actions on climate.

Scientists are becoming increasingly concerned about the fate of the huge boreal forest that spans from Scandinavia to northern Canada. Unprecedented warming in the region is jeopardizing the future of a critical ecosystem that makes up nearly a third of the earth’s forest cover.

Ecological crises may be piling up in a seemingly hopeless cascade, but Swedish scientist Johan Rockström says the next few decades offer an unparalleled opportunity to undo the damage.

An astonishing 18 percent of the European Union’s land area is protected under a network of preserves known as Natura 2000. Now, at the urging of business interests and farmers, the EU is examining whether regulations on development in these areas should be loosened.

A recent battle over imposing a “climate fee” on coal-fired power plants highlights Germany’s continuing paradox: Even as the nation aspires to be a renewable energy leader, it is exploiting its vast reserves of dirty brown coal.

Biologist Beth Shapiro has published a new book that looks at the many questions — both technical and ethical — surrounding any attempt to revive extinct species. In a Yale Environment 360 interview, she explains why she believes new genetic technology could benefit critical ecosystems.

Offshore wind farms have been proliferating in the North Sea, with more huge projects planned. But conservationists are concerned this clean energy source could threaten seabird colonies that now thrive in the sea’s shallow waters.

On eBay and elsewhere on the Internet, illegal wildlife and wildlife parts — from elephant ivory to tiger skins to monkey and crocodile skulls — are being sold. Bringing an end to this illicit activity is proving to be a daunting challenge.