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Nearly half of the water drawn from the Colorado River goes to feed for beef and dairy cows. Researchers say modest changes in American diets could help farmers use less water — and help the climate.

Nearly half of women over 40 have dense breasts, which raises their risk of breast cancer. Mammograms should now include an assessment of breast tissue density.

From meal kits to grocery service to restaurant delivery, we look at the carbon footprint of convenient food and the choices people can make to try to reduce it. Sometimes there are trade-offs.

A massive project headed by Elon Musk in Memphis, Tenn., to power AI has moved at breakneck speed. But it's stirring controversy around pollution emissions. The EPA says it's looking into it.

Governments and industries are pouring billions of dollars into so-called "regenerative agriculture." But while scientists say some of these farming practices do reduce planet heating pollution, for others the science is less clear.

Oregon’s highest needs schools that are focused on revamping literacy instruction and boosting student reading proficiency will get federal financial help next year.

Frustrated when Brazil could not get COVID vaccines, two Brazilian doctors (who have been best friends since college) decided to invent their own version and offer up the patent essentially for free.

Add these episodes to your listening rotation during the NPR Network's Climate Solutions Week, where we're dedicated to stories and conversations about the search for climate solutions.

Significant changes in the U.S. population in the last two decades have already made an impact on politics. Here's how it's playing out in the seven most closely watched states this election.

Check your receipt. Grow your own veggies. Ask about senior discounts. NPR readers share their top tips on cutting costs at the grocery store.