U.N. Chief Warns of a Dangerous Tipping Point on Climate Change

Warning of the risks of “runaway” global warming, the United Nations secretary general, António Guterres, on Monday called on global leaders to rein in climate change faster. “If we do not change course by 2020, we risk missing the point where we can avoid runaway climate change,” Mr. Guterres said at United Nations headquarters in […]

Tick and Mosquito Infections Spreading Rapidly, C.D.C. Finds

The number of people getting diseases transmitted by mosquito, tick and flea bites has more than tripled in the United States in recent years, federal health officials reported on Tuesday. Since 2004, at least nine such diseases have been discovered or newly introduced here. The Centers for Disease Control and Prevention did not suggest that […]

The Baseless Claim That Climate Scientists Are ‘Driven’ by Money

The federal government’s most recent climate change report, released last week, warned that global warming could cause substantial damage to the American economy, human health and the environment. The report has prompted some critics to dismiss climate scientists as corrupted by money, a common but baseless attack. “We were paid zero dollars to produce the […]

White House Urges Research on Geoengineering to Combat Global Warming

A White House road map for federally funded climate research has for the first time recommended research into geoengineering, the concept of intervening in nature to slow or reverse global warming. The document, an update of a report that lays out a plan for climate-related research at 13 federal agencies until 2021, calls for studies […]

Trump Imperils the Planet

It’s hard to believe but it was only three years ago this month — just after 7 p.m., Paris time, Dec. 12, to be precise — that delegates from more than 190 nations, clapping and cheering, whooping and weeping, rose to celebrate the Paris Agreement — the first genuinely collective response to the mounting threat […]

Could Earth’s Ice Sheets Collapse?

We love answering your questions about climate change. Ask us anything via the form at the bottom of our climate Q. and A. Lawrence Lahiff asks: Can the Greenland and West Antarctic ice sheets collapse suddenly? Thanks for your question, Lawrence. If just the Greenland and West Antarctic ice sheets melted completely, global sea levels […]

A Hurricane, Turbocharged

On Sunday, Hurricane Florence was a relatively mild Category 1 storm. By Monday, it had grown to be a Category 4 storm. That kind of rapid escalation isn’t normal — or at least it didn’t used to be. Thanks to climate change, however, the sudden intensification of hurricanes appears to have become more common. “This […]