CO2: 428.62 ppmRescinding the 2009 rule will leave Americans to pay a high price — up to nearly $4 trillion by 2055, and a health risk to tens of millions, writes Julia Musto
The Trump administration dismantled a key defense in the U.S. fight against climate change. Experts say that may have far-reaching impacts on people's finances.
The 2009 endangerment finding affirms that carbon dioxide and other greenhouse gases pose a threat to human health and welfare. Its repeal marks one of the most significant deregulatory actions in U.S. history.
‘We could be entering a period of unprecedented climate change,’ scientists warn
Continued global heating could set irreversible course by triggering climate tipping points, but most people unaware
Researchers say governments and financial institutions underestimating threat because they rely on models that assume climate crisis impacts will be gradual
Ecologist Greta Wengert warns that illegal cannabis grows are polluting California's public lands.
The National Park Service is considering a proposal that would place Los Angeles County beaches under its jurisdiction.
Hiking guides hired to carry 20-pound nodes into the mountains were part of a new type of resource survey.
“It’s kind of a no-brainer,” said one expert behind the desperate effort to slow the melt.
Students sent in questions about our reporter’s journey to Antarctica, covering data recovery, clothing and more.
Scientists on the Thwaites Glacier attempted to install equipment beneath the ice to better understand how it is melting. Our climate reporter Raymond Zhong walks us through their landmark experiment and the bittersweet outcome.