A record-high share of U.S. adults say they think global warming will pose a “serious threat” to them in their lifetime, according to a Gallup poll released Wednesday. In the survey, conducted in early March, 48 percent of respondents say they think “global warming will pose a serious threat to you or your way of life in your lifetime”— up from 44 percent last year and 46 percent in 2023, the previous record high. Still, a majority of Americans — 51 percent — say they don’t expect global warming to...

Coming during the hottest year scientists have ever seen, the surge in atmospheric CO2 indicates that humanity is losing a crucial ally in the fight against planetary warming, experts say. The land and oceans have historically taken up about half of the greenhouse gases people emit. Without these places that absorb CO2 — known as carbon sinks — global temperature rise would be twice the roughly 1.3 degrees Celsius (2.3 degrees Fahrenheit) the world has already endured. The record growth can’t be blamed solely on burning fossil fuels, data suggest....