We're nearing a year when a negative leap second could be needed to shave time — an unprecedented step that would have unpredictable effects, a new study says.
Coral reefs face a dire future as oceans get hotter. Scientists are breeding corals that can handle heat better, in the hope they can survive long enough for humans to rein in climate change.
More than half of the Colorado River's water is used to grow crops, primarily livestock feed, a new study finds. The river and its users are facing tough decisions as the climate warms.
The EPA has finalized the strictest-ever limits on greenhouse gas emissions from heavy-duty trucks, a category that includes everything from buses to garbage trucks.
The state was on the cusp of making new rules to protect people who work in places like warehouses from dangerous heat. A last-minute shake-up leaves workers wondering if they'll be safe come summer.
Snowmaking has helped cover up the effects of climate change for a long time. But by the turn of the century, that started to change. A recent report shows US resorts are opening later, closing earlier, and taking a financial hit. For an industry that relies on snow, the threat is existential. Can ski resorts survive?
As burned properties come up for sale in Lahaina, many worry outside developers will scoop them up. Some are turning to a tool that's helped other towns after a disaster: a community land trust.
Texas investigators say the largest wildfire in state history appears to be caused by a power line. Aging utility infrastructure ups the risk of starting wildfires as the climate heats up.
From lack of snow to wildfires, a record-warm winter had impacts across the country. Scientists say winters are warming faster than any other season in the U.S.
Reservoirs that furnish a large part of the Mexican capital have fallen to historic lows, as low rainfall, climate change and mismanagement exacerbate the problem.
Outgoing climate envoy John Kerry talks about leaving the job, how another Donald Trump presidency could impact the fight against climate change, and how he remains hopeful.
A satellite with a climate solutions mission blasted off on a SpaceX rocket Monday. It's on a mission to detect planet-heating methane pollution from the oil and gas sector.