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Climate Tech

Trump Ratchets Up Effort to Annex Greenland
AM Briefing

AM Briefing: Greenland Dreamin’

On AI forecasts, California bills, and Trump’s fusion push

Energy

Is Burying a Nuclear Reactor Worth It?

Deep Fission says that building small reactors underground is both safer and cheaper. Others have their doubts.

Green
AM Briefing

The Calm After the Storm

On Venezuela’s oil, South Korean nuclear, and Berlin militants’ grid attack

Red
Climate Tech

The Wackiest Climate Tech Bets of 2025

Because you never know what’s going to take off.

Yellow
Donald Trump.

The Grinch of Offshore Wind

On Google’s energy glow up, transmission progress, and South American oil

Green
Clean energy.

The Biggest Energy and Climate Stories of 2026

A lookahead with Heatmap’s own Emily Pontecorvo, Matthew Zeitlin, and Jillian Goodman.

Green
AM Briefing

The Big Atom

On Redwood Materials’ milestone, states welcome geothermal, and Indian nuclear

Kathy Hochul.
<p>Heatmap Illustration/Getty Images</p>

Current conditions: Powerful winds of up to 50 miles per hour are putting the Front Range states from Wyoming to Colorado at high risk of wildfire • Temperatures are set to feel like 101 degrees Fahrenheit in Santa Fe in northern Argentina • Benin is bracing for flood flooding as thunderstorms deluge the West African nation.


THE TOP FIVE

1. New York partners with Ontario on advanced nuclear

New York Governor Kathy Hochul. John Lamparski/Getty Images for Concordia Annual Summit

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AM Briefing

Trump Gets Into Fusion

On permitting reform passing, Oklo’s Swedish bet, and GM’s heir apparent

Donald Trump.
<p>Heatmap Illustration/Getty Images</p>

Current conditions: New Orleans is expecting light rain with temperatures climbing near 90 degrees Fahrenheit as the city marks the 20th anniversary of Hurricane Katrina • Torrential rains could dump anywhere from 8 to 12 inches on the Mississippi Valley and the Ozarks • Japan is sweltering in temperatures as high as 104 degrees.

THE TOP FIVE

1. Trump’s social media company is getting into fusion energy

In a Mad Libs of a merger story, President Donald Trump’s social media company inked a $6 billion deal Thursday to combine with fusion energy company TAE Technologies in a bid to start construction on “the world’s first utility-scale fusion power plant” next year. It’s a lofty claim, to put it minimally. Once the darling of private fusion investors, TAE has since fallen behind rivals pursuing technological approaches that are considered easier and better studied, such as Commonwealth Fusion Systems. A key difference between the two technologies is the fuel. While TAE's deuterium-fueled reactor has to get as hot as 1 billion degrees Celsius, Commonwealth Fusion’s tritium-deuterium fuel needs to reach only — I almost want to put “only” in quotes since we’re talking about a temperature nearly seven times hotter than the center of the sun — 100 million degrees. The more than two dozen private fusion companies racing to build the first power plant aren’t just competing against each other. China, as I have written in this newsletter recently, is outspending the rest of the world combined on fusion investments.

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