E.P.A. Will Ease Path to New Coal Plants

WASHINGTON — The Trump administration is poised to roll back a significant climate change regulation on coal-fired power plants, making it easier to build new coal plants in the United States. The Environmental Protection Agency is expected to announce the plan on Thursday, according to four people familiar with the administration’s proposal who were not […]

Science Alone Won’t Save the Earth. People Have to Do That.

This planet is in crisis. The safe limits within which human societies can be sustained, the earth’s “planetary boundaries,” are being exceeded, a path leading inevitably toward collapse. The experts have spoken. Only if humanity heeds the science, reverses course and lives within earth’s natural limits can disaster be avoided. Or maybe you believe the […]

Trump Put a Low Cost on Carbon Emissions. Here’s Why It Matters.

WASHINGTON — How much economic damage will global warming cause? That’s one of the key questions embedded in the Trump administration’s recent proposals to weaken Obama-era regulations on greenhouse gas emissions from both vehicles and power plants. When federal agencies calculate the costs and benefits of climate regulations, they use a figure called the “social […]

To Curb Global Warming, Science Fiction May Become Fact

In the delirious sci-fi thriller by the Korean director Bong Joon-ho, an attempt to engineer the climate and stop global warming goes horribly wrong. The planet freezes. Only the passengers on a train endlessly circumnavigating the globe survive. Those in first class eat sushi and quaff wine. People in steerage eat cockroach protein bars. Scientists […]

An Ozone Whodunit

Why has a banned industrial gas that destroys the ozone layer made a mysterious resurgence lately? This week, we investigate that and find a likely source. We also have a story about lobsters and a quiz about beaches. But first, two quick headlines. In Scott Pruitt news: We learned more about his connection to his […]

Algae Bloom in Lake Superior Raises Worries on Climate Change and Tourism

In 19 years of piloting his boat around Lake Superior, Jody Estain had never observed the water change as it has this summer. The lake has been unusually balmy and cloudy, with thick mats of algae blanketing the shoreline. “I have never seen it that warm,” said Mr. Estain, a former Coast Guard member who […]

Scientists Push for a Crash Program to Scrub Carbon From the Air

WASHINGTON — With time running out to avoid dangerous global warming, the nation’s leading scientific body on Wednesday urged the federal government to begin a research program focused on developing technologies that can remove vast quantities of carbon dioxide out of the atmosphere in order to help slow climate change. The 369-page report, written by […]

Traveling to the Ends of the Earth to Document Climate Change

Times Insider delivers behind-the-scenes insights into how news, features and opinion come together at The New York Times. When the 75-foot sailboat pulled up to the island near the tip of the Antarctic Peninsula, George Steinmetz looked through a pair of binoculars and just didn’t see that many penguins. This was a problem. He had […]