A male greater sage grouse performed mating rituals for a female grouse, not pictured, on a lake outside Walden, Colo.
In a shift in policy toward endangered species, conservation interests are working with those of government and business on wider-ranging plans.
A safari group watching a leopard at a game reserve near Kruger National Park in South Africa.
We like to think that photographing wild animals on safari is completely different from trophy hunting — but is it?
California, where half of the country’s electric cars are registered, is pushing for more, but as it is, too-few charging stations lead to fierce competition for available spots.
More than a year after the Michigan city switched its water supply, officials reversed course after blood tests showed increased lead levels in some children.
For months, authorities in Flint, Mich., tried to ease worries about the water. But that was before it was identified as a possible cause of increased lead levels in children.
The British government has imposed a charge for use of plastic shopping bags that litter the landscape and take a thousand years to decompose.
Sunshine aside, water was still standing in many neighborhoods, and some residents were still effectively trapped in their homes.
Using a CT scanner, a team hopes to gather information about the long-perished residents’ habits and lifestyles, and possibly to dispel presumptions.
Provisions of the Trans-Pacific Partnership agreement would protect wildlife covered by an existing international agreement, and provide for cross-border cooperation on enforcement.
Gov. Nikki R. Haley warned that more disruptions, including evacuations, were likely as floodwaters flowed from the center of the state toward the coast.
A new study reports that at least 3.1 percent of frog species have gone extinct, and another 6.9 percent may disappear within the next century.
A well-coordinated and well-financed campaign to win repeal of the 40-year-old ban on oil exports, once thought a long shot, is gaining momentum.
Secretary of State John Kerry spoke about the problem of overfishing at the “Our Ocean” conference in Chile on Monday. The United States and Chile also announced the creation of new marine reserves.
A team of paleontologists from the University of Michigan unearthed the remains of a woolly mammoth near Chelsea, Mich.
Highlights from Pope Francis’ address to the United States Congress, where he called for dialogue, compassion and shared social responsibility.
The New Orleans of 2015 has been altered, and not just by nature. In some ways, it is booming as never before. In others, it is returning to pre-Katrina realities of poverty and violence, but with a new sense of dislocation for many, too.
Explore mysterious solar snapshots, new findings about left-handedness and other intriguing bits of science.
The company knew decades ago about the potentially catastrophic dangers of burning fossil fuels. Then it chose a path of disinformation and denial.
Global Warming
Endangered and Extinct Species
Energy Efficiency
Earth Day
Greenhouse Gas Emissions
Air Pollution