Jason Dove Mark

@jasondovemark.bsky.social

Former EIC of Sierra; former editor of Earth Island Journal. Author of the forthcoming book, The Earth Said Remember Me (July '26; Norton). Author of Satellites in the High Country. Lily's Dad. Gardener + Hiker. Posts = ill-considered opinions.

I'm not sure folks have realized just how crazy the second half of 2026 and 2027 will be for global temperatures – on the back of a record-smashing El Niño event. Here is my latest estimate of where both years will end up compared to global temperatures since 1850.

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Bordeaux, France, has now recorded more days above 40°C in 2026 alone than during the entire 105-year period from 1920 (when observations began) to 2025. This is deeply shocking.

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Climate change ain't cheap: The costs associated with the health impacts of heat waves from 2015 to 2020 were estimated at between between $25 billion and $42 billion. Future heat waves could cost the country more than $230 billion over the next four years. www.nytimes.com/2026/07/29/o...

Opinion | Over 100 Degrees in Paris, Flames Near Bordeaux. France Can’t Go On Like This.

The frightening heat and wildfires this summer should be an impetus to those in charge to reckon with how quickly the risks are changing.

nytimes.com

"Carbon emissions from the US power sector rose by 4 percent last year — larger than the increase in the economy overall. [This is due] to a 13 percent increase in coal power generation, partially driven by the proliferation of large-scale data centers."🤦 grist.org/energy/data-...

It’s official: Data centers are slowing America’s shift away from coal

New federal data shows that AI demand helped push U.S. power sector emissions up last year.

grist.org

"I’m not ready to throw the practice of land acknowledgments out... An acknowledgment that opens a conversation, that involves the tribe, that leads somewhere, is different. But the test isn’t in the words. It’s in what action comes after the words have been spoken." www.nytimes.com/2026/07/24/o...

Opinion | I’m Native American. Land Acknowledgments Are Infuriating.

Conservatives who critique land acknowledgments aren’t acting in good faith, but they do have a point.

nytimes.com

Climate change is leaving language in the dust: The Japan Meteorological Agency held a public poll to select a name for a day of temperatures of 104 degrees Fahrenheit or higher. The winner was kokushobi, meaning “cruel heat day.” www.nytimes.com/2026/07/23/w...

It’s So Hot That Japan Needs a New Word for It

Japan this week recorded its first kokushobi, a term that means “cruel heat day,” as temperatures reached 104 degrees. It is not the only country that has scrambled for a new summer vocabulary.

nytimes.com