High Tech High Mesa graduate Kelly Semtner spent the summer studying how plants and fungi exchange nutrients.
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As Canada and parts of the U.S. confront declines in air quality due to smoke from Canadian wildfires, NPR reporters in Asia, Latin America and Africa share their experiences. -
Business is pretty good in America's busiest oil patch. Prices are high enough to turn a profit and then some. But instead of going wild, producers have been aiming for something new: Discipline. -
How bad does the air get inside your house? What should schools do about recess? Western states have grappled with all that before. -
The natural climate pattern known as El Niño has officially begun. It exacerbates human-caused climate change, driving even hotter temperatures and other dangerous weather. -
Population growth has long been a source of worry in India, which now has more people than China: 1.486 billion residents. But some experts are optimistic about the impact of this population boom. -
From particulate matter to the AQI, here's what you need to know to protect yourself as the smoky haze settles over much of the East Coast. -
Lava began erupting at the Halemaʻumaʻu crater and reached heights of 13 to 30 feet and covered an area of approximately 370 acres. The biggest threat to those in the area is volcanic gas. -
The health effects of wildfire smoke are dangerous. Here's how to stay safe when the air quality is unhealthy. -
Dozens of shorts, features and documentaries look to the oceans and water in celebration of United Nations' World Oceans Day. -
Some of the worst air quality was recorded in the Great Lakes region and in Pennsylvania, New York, New Jersey and the Washington, D.C., metro area.
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