All explainers
Explainer
Diesel Engines & Public Health
With mounting evidence that diesel exhaust poses major health hazards, reducing diesel pollution has become a public priority.
Explainer
The Truth about Tyson
For too long, Tyson Foods has gotten away with putting farmers out of business, exploiting workers, poisoning our water and land, and gouging consumers.
Explainer
Fissile Materials Basics
A discussion of uranium and plutonium and their role in nuclear weapons.
Explainer
All About EV Battery Recycling
Recycling could meet a measurable amount of demand for battery materials as more EVs come on the road.
Explainer
North Korea Basics
Nuclear warheads, long-range missiles, and a combative leader. What are the options?
Explainer
What’s Wrong with Fossil Fuel–Based Fertilizer?
Massive overapplication of nitrogen fertilizer in agriculture damages soil, causes pollution, and contributes to climate change.
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What is Climate Loss and Damage?
Wealthy, polluting nations should pay for climate damages.
Explainer
The Supplemental Nutrition Assistance Program (SNAP)
Attacks on SNAP are rooted in persistent, divisive myths about the program. Here are the facts.
Explainer
Cars, Trucks, Buses and Air Pollution
Transportation is a major source of air pollution and the emissions that contribute to climate change in the United States.
Explainer
How Nuclear Weapons Work
At the center of every atom is a nucleus. Breaking that nucleus apart—or combining two nuclei together—can release large amounts of energy.
Explainer
Each Country's Share of CO2 Emissions
Which 20 countries emit the most carbon dioxide? The wealthiest.
Explainer
What is Nuclear Testing?
A resumption would increase the risk of nuclear war.