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AM Briefing: The Growing Cost of Hail Damage

On the question insurers are asking, UAW’s Mercedes vote, and childhood asthma


AM Briefing: Biden’s Coal Lease Crackdown

On the future of coal mining, critical minerals, and Microsoft’s emissions


America’s Entire Energy Story in a Single Oregon Canyon

The Owyhee River watershed is among the country’s largest areas of pristine wilderness. It’s also prime for green development.

Florida’s New Climate Change Law Is About Much More Than Words​

AM Briefing: Florida Erases Climate Change

On DeSantis’s latest legislation, solar tariffs, and brain disease


AM Briefing: About Last Summer...

On historical heat data, clean hydrogen, and solar geoengineering

Last Summer Was the Hottest in 2,000 Years
Heatmap Illustration/Getty Images

Current conditions: Wildfires continue to burn out of control in western Canada • An early season heat wave will bring record high temperatures to parts of Florida • One in eight Europeans now live in an area at risk of flooding.


1. Study: Last summer was the hottest in 2,000 years

We already know that last summer was the hottest “on record” – but those records only really go back to the 1850s or so. A new study published in the journal Nature looks further into the past and concludes that last summer was the warmest in some 2,000 years in the Northern Hemisphere. To reach this conclusion, researchers examined thousands of tree rings, which offer clues about a year’s temperature and moisture levels. The tree ring data suggests last summer was about 4 degrees Fahrenheit warmer than the average temperature of the years 1 AD to 1890 AD. The study warns that summer 2024 could be even warmer than 2023.

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Electric Vehicles

13 Ways of Looking at Biden’s New China Tariffs

Why Chinese-made electric vehicles and solar panels now face some of America’s highest trade levies.

Xi Jinping and President Biden.
<p>Heatmap Illustration/Getty Images</p>

The United States raised tariffs on a range of Chinese-made climate technologies on Tuesday, including electric vehicles, solar panels, and battery components.

Inspired by the poet Wallace Stevens, here are 13 ways of looking at them:

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