NYTimes - Environment

The surprising carbon footprint of an Amtrak trip across America.

The new regulation is aimed at reducing the risk of cancer for people who live close to plants emitting toxic chemicals.

From dolphins with Alzheimer’s to cranky traffic judges, writes Clayton Page Aldern, the whole planet is going berserk.

Volkswagen’s plant in Zwickau stopped producing Golfs and switched to electric vehicles, illuminating the risks and opportunities for factory towns and cities.

An early forecast from one set of experts sees an above-average hurricane season that may rival the busiest years on record.

Rising temperatures in Antarctica are making meteorites sink out of view before researchers can collect them.

Wildfires and agricultural expansion offset big gains in protecting tropical forests last year.

Big brands like Procter & Gamble and Nestlé say a new generation of plants will help them meet environmental goals, but the technology is struggling to deliver.

Last July, a recently divorced writer who had found solace in hiking took on a towering challenge: Mount Whitney, the highest peak in the lower 48 states.

He played a key role in securing the Montreal Protocol, an international environmental pact to protect the ozone layer by reducing the use of certain chemicals.

His work, on an increasingly large scale, attempted to highlight, and repair, the impact of human intervention on the landscape.

Gala Porras-Kim has confronted the restitution of cultural artifacts and now — with melting Antarctic ice — climate change.

As forests succumb to ever-fiercer wildfires, the federal government and some adventurous private companies are trying to resuscitate an industry.

A new technology is attempting to brighten clouds and bounce some of the sun’s rays back into space.

The automaker said it would delay new battery-powered models and shift its focus to hybrid cars, sales of which are rising fast.

The E.P.A. said the fund will spur a clean energy transition in overlooked communities. Republicans called it a “greendoggle.”

Blocking solar rays. Sucking carbon dioxide from the atmosphere. Ideas that sound like science fiction are now starting to become reality, raising concerns about safety.

Artificial intelligence is peering into restaurant garbage pails and crunching grocery-store data to try to figure out how to send less uneaten food into dumpsters.

The Italian energy giant Eni sees future profits from collecting carbon dioxide and pumping it into natural gas fields that have been exhausted.

A landscape architect in China has a surprising strategy to help manage surges of water from storms supercharged by climate change.