A new study urges officials to change the status of cheetahs from 'vulnerable' to 'endangered.' The big cats have been pushed out of 91 percent of their historic habitat.
As climate change raises the prospect of more open Arctic waters, Maine is hoping to take advantage, economically and culturally.
For the first time, the costs of wind and solar power have dropped to match those of fossil fuels. Environmental advocates hope that could make businesses more likely to opt for renewable energy sources when calculating their costs.
Oil companies and Arctic communities have long sought prosperity through resource extraction. Plans announced by Barack Obama and Justin Trudeau imply more focus on tourism and sustainability.
The TanSat satellite will track carbon dioxide emissions, which China has committed to cutting as part of the Paris climate agreement.
Manganese, a metal used in cellphones and computers, may be critical to the life cycles of deep sea octopuses.
Temperatures are expected to climb to just below the freezing point on Thursday, much higher than is usual during an Arctic winter.
The White House puts vast areas off Atlantic and Arctic coasts off limits to drilling. The move may reflect how a 'Keep it in the Ground' movement has gained traction within the Democratic Party.
Plenty of people on the political left want action to address climate change. But many people on the right do to; they just are wary of big government. Perhaps the time is ripe for an art-of-the-deal solution.
Detroit, Philadelphia, and Houston are among the places investing in 'green infrastructure' that mimics wetlands. It can be cheaper than the alternative, given the threat posed by climate change.
Some cities in northern China have taken drastic measures to combat smog, including temporarily shutting down factories and restricting the number of cars allowed on roads.
In this edition: rising allegations of sexual harassment by National Park Service employees; the nuance on Trump's energy team; Canada's carbon-price move.
One of the largest onshore oil spills in US history continues to highlight the dangers of oil pipelines, as the battle over the four-state Dakota Access pipeline continues.
The ever-plentiful 'mineral-laden water' flowing out of the vent chimneys make the area an ideal habitat for various sea life – and, more recently, an ideal location for seafloor mining of copper and gold.
There may be as few as three dozen vaquita porpoises left in the world. Mexico hopes an international effort to catch and enclose the porpoises will protect them, though some are skeptical.
Canada isn't the first to do this, but the move is a landmark one for its scale and regional flexibility – and because the country is a major fossil fuel producer.
The team includes an Energy nominee who knows wind power can work, a State Department nominee who has supported the Paris climate deal, and an Interior nominee who's not big on selling off federal lands.
Colorado wildlife officials have come under fire for culling predators, a controversial approach to protecting the dwindling mule deer population.