Readers discuss reasons for the trend, and how it may be reversed.
A reader writes that dealing with climate change at the last minute invites disaster.
Helping humans here on Earth should take precedence over space tourism, readers say. Another says Mr. Bezos is helping to save the human species.
This week: The Arctic is melting, and Scott Pruitt is under fire. Also, we answer your question about investing, not just divesting, to make a difference.
The E.P.A. administrator made his third congressional appearance in less than a month and appeared unable to deflect some tough questions.
Many solidly Republican states have resisted aggressive climate policies, but Alaska is already seeing the dramatic effects of global warming.
The Lyft president on self-driving cars, climate change and not reinventing the bus.
The number of units worldwide is predicted to soar by midcentury, and the electricity to power them will increase planet-warming emissions.
This winter, the Arctic Ocean hit a record low for ice older than five years. Scientists say that summers in the Arctic may be ice-free in the future.
David Holmgren, who decades ago encouraged homeowners to turn their backyards into gardens, is now calling for suburbanites to go further off the grid.
The president has directed his administration to negotiate with California over a proposed rollback of fuel economy and tailpipe emissions standards.
The city hasn’t outlawed it, but many restaurants and cafes — concerned about the environment — are replacing it with paper, metal or no straw at all.
As a leader of the fight against the Trump administration’s rollbacks leaves the stage, what comes next? And what about the Exxon investigation?
This week, we’re answering your questions about the color of rooftops and how the global temperature is measured.
The files, released as part of a Freedom of Information request, show the extent to which the E.P.A. worked with groups outside mainstream scientific view on climate.
The ongoing revelations of Mr. Pruitt’s ethical missteps may be making the president more receptive to Mr. Pruitt’s exit, according to officials.
The E.P.A. chief has cited the memos to justify costly round-the-clock security, which has attracted criticism and scrutiny.
New files suggest the E.P.A. chief’s close control of his public events is driven more by a desire to avoid tough questions than by security concerns.
American black bears are not always hibernating when they should be. Sometimes, they go in search of humans’ food, and that’s an even bigger problem.
Meteorologists say the reading in Nawabshah was the highest April temperature ever reliably recorded anywhere in the world.
Doing so will worsen the consequences of climate change.
The remarkable landscape, discovered only in the past five years, has become a must-see attraction. But the tourism boom may be environmentally harmful.
Rates of Lyme, Zika and exotic new diseases are soaring. Federal officials blame hotter weather, jet travel, forested suburbs and slow vaccine development.
A reporter reflects on an E.P.A. administrator unlike any she’s seen in her 12 years of covering environmental policy.
The government will set aside 500 million Australian dollars to help the global treasure after years of damage from warming waters caused by climate change.
The agency has drafted regulations on planet-warming emissions from vehicles that would dramatically weaken Obama-era standards.
A 9,000 mile migration? It was no problem for these remarkable birds – until humans got in the way.
The rocks in this part of the world have a special ability: They can turn carbon dioxide into stone.
The E.P.A. chief said that decisions regarding illegal actions by his office had been made by his staff members without his knowledge.
Also this week, we explain why the Atlantic Meridional Overturning Circulation has been in the news (really).
Siberian truck drivers, who haul heavy loads on winter roads made of ice that melts earlier every year, are true believers in climate change.
An environmentalist and author tells Fixes how his organization rates the benefits of measures already in use to minimize climate change.
Senator James Inhofe, who has long championed Mr. Pruitt, now says he’d like to see an investigation into the ethical allegations against his protégé.
Polar bears haunt the landscape around the remote town of Churchill in northern Manitoba.
The proposal comes a year after Gov. Andrew Cuomo blocked a 5-cent city surcharge on the bags and as he has tacked left since Cynthia Nixon began a primary challenge.