Jack Klein takes heat readings, gives fans to overheated passengers and lugs big jugs of water into the stations

On a recent August day in the subterranean furnace of New York City’s subway, one bearded, curly haired man was studying his phone for different reasons than the other wilting passengers – to track the soaring temperatures and ponder how underground train stations can cool down in an era of climate crisis.

Jack Klein, a 31-year-old construction site manager, has in the past two years taken it upon himself to become a sort of guerrilla subway heat operative, sticking teardrop-shaped thermometers to steel beams in seven of the hottest Manhattan stations and posting social media videos of the hades-like summer temperatures that commuters have to endure.

There has been a 76% increase in under-construction gas-fired projects amid ‘frenzy’ to build more datacenters

The US has surged ahead of China in the building of new gas-fired power generation, largely to feed a boom in artificial intelligence (AI) that is adding vast amounts of planet-heating emissions, a new analysis has found.

For decades, China’s rapid economic growth has seen it outpace the US in the addition of new gas power generation but a recent “frenzy” in datacenter construction for AI has reversed this, said Global Energy Monitor (Gem) in its new report.

Administration’s plan to scrap drilling-free buffer zone around New Mexico site prompts scrutiny from Unesco

The Trump administration’s push to expand oil and gas extraction across the US is set to bring drilling near cherished natural and cultural sites, raising alarm among conservationists and prompting questions from the UN’s heritage body.

Unesco said it had received information on the administration’s plan to scrap a drilling-free buffer zone around the Chaco Culture national historical park in New Mexico, a world heritage site and one of the most important cultural areas in the US. A Unesco spokesperson said it had procedures regarding “potential threats” to a world heritage property and was awaiting a response from the federal government as to its impact.

Image captured in early June shows animal foraging in the waterway in first since early 1900s, signaling its recovery

An otter has been spotted in the Bronx River for the first time in more than 100 years, in a further sign that New York’s previously befouled waterways are recovering some of their ecological health.

The North American river otter was photographed by a motion-activated camera foraging near some vegetation in the Bronx River, a waterway that flows through New York’s Bronx and empties into the East River.

Funding boost worth $100,000 has recently materialized in form of new marmot-themed cryptocurrency

Scientists who turned to OnlyFans to help save long-running research into marmots have raised more than $100,000 after harnessing the support of another, very modern, funding avenue – cryptocurrency.

The 60-year project of continuous study of marmots – stout, ground-dwelling rodents that are the largest members of the squirrel family – across the US west was facing termination following science funding cuts imposed by Donald Trump’s administration.

Study of 56m-year-old leaves counters claims from Trump administration members of ‘benefits’ of fossil fuel pollution

Adding huge quantities of carbon dioxide into the atmosphere is set to cause the Earth’s forests to wither and die rather than flourish, according to a new study that counters erroneous claims that fossil fuel pollution will green the planet.

An analysis of fossilized leaf cells from a period known as the Paleocene-Eocene Thermal Maximum (or PETM), which occurred about 56 million years ago, has helped reconstruct how the world’s forests responded when planet-heating gases were previously being released at a rapid rate.