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Climate

Carbon removal.
AM Briefing

EU Backs DAC

On British oil, Claude’s friend request, and Russian nuclear

Daily Briefing

What Worries Me Most About This Wildfire Smoke

We didn’t know days like this could happen. Then we learned how bad they really are.

Blue
Adaptation

The East Coast’s New Forever Problem

Smoke is back. Again. It’s time to make a plan.

AM Briefing

Oil’s Road to Damascus

On NRC moves, Blue Energy, and China’s solar and methanol breakthroughs

Yellow
Jogging in smoke.

How Bad Is Exercising in Wildfire Smoke?

Your mileage may vary — but you’ll probably want to keep the outdoor runs to a minimum.

Blue
Smoky days.

5 Things to Keep in Mind When It’s Smoky Outside

What are the health risks? How can I protect myself? And will my plants be okay?

AM Briefing

La Brega de Agua

On Hungary’s BYD scandal, seawater uranium, and saving styrofoam

The Puerto Rico water shortage.
<p>Heatmap Illustration/Getty Images</p>

Current conditions: Wildfire smoke tinted the skies orange across the Northeastern United States, rendering the air on New York’s Long Island thick and hazy all afternoon • London is a balmy 83 degrees Fahrenheit today, but new research shows that the number of days topping 86 degrees has quadrupled since the 1980s • Chile declared a state of emergency across 10 regions ahead of a series of major storms.

THE TOP FIVE

1. Oil traders issue a stark warning as Trump ramps up Iran War

The resumption of fighting between the United States and Iran over the Strait of Hormuz could hammer energy markets harder than the previous phase of the conflict, as the crude stockpiles governments tapped at a record volumes to avert the worst economic impact of the war are now depleted. That’s the warning oil traders issued to the Financial Times on Wednesday. “We’ve burned through all of the buffers we had. Everything,” one trader said. “All of that’s now gone.” The gloomy assessment came as The Wall Street Journal reported that President Donald Trump has weighed expanding the U.S. military operation in Iran.

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Climate

Orange Skies Are Back

Where is the smoke worst, where will it go next, and what causes that color?

An orange sky.
<p>Heatmap Illustration/Getty Images</p>

Before wildfire smoke turns the skies to a jaundiced yellow-gray, it might look almost pretty. Midday light grows diffuse, taking on a crepuscular golden hue. Shadows soften and stretch long. The sunsets are particularly incredible: radiant, neon red.

But as with oleander and poison dart frogs, beautiful things are often the most dangerous. The same wildfire particulates that scatter the light will, once dense enough, turn the air around you orange, then black. They will get into your lungs — slipping past your nose hairs and mucus, the body’s defenses that stop larger particulates — and provoke your immune system into an attack. The tiny air sacs at the ends of the bronchioles in your lungs, where the gas exchange of “breathing” actually happens, will become inflamed. You will become short of breath. You will cough. The smallest smoke particulates may even enter your bloodstream.

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