Shannon Osaka

• Climate Lab

Around 12 percent of all plastic waste produced in cities is burned in the open air, creating air pollution and health risks.

Researchers at the University of California are using gene editing to eliminate cattle methane emissions.

• Climate Solutions

Scientists are studying how to genetically modify the makeup of cows’ gut microbiomes to prevent their planet-warming methane emissions.

• Olympics

Simone Biles and Sunsisa Lee led the U.S. women to a gold medal in team gymnastics in Paris, redeeming their stumble in Tokyo.

• Climate Solutions

High outdoor temperatures, rising climate costs, and humidity are all contributing to higher AC bills

• Climate

The Jurupa Oak is older than almost any other plant on Earth. Environmentalists and locals worry that the ancient tree is under threat from a force in modern California: development.

• Olympics

Simone Biles won the all-around competition on the final day of Olympic trials. Jordan Chiles, Sunisa Lee, Jade Carey and Hezly Rivera round out the team headed to Paris.

• Climate

The burning of fossil fuels has been cooling the planet while warming it — presenting problems for the future.

• Post Reports

With every breath you take, you could be inhaling microplastics. Today, we talk about where they come from, how they impact our health and what we can do to avoid them in our daily lives.