Tim Grenda

The signs suggest that the public avoid the immediate area and any contact with the river water.

If you're honoring your loved ones this upcoming Day of the Dead, planting cempasúchil for your ofrenda might be easier than you think.

The city of San Diego is going to consider whether to pay hotel and other tourism workers a higher minimum wage of $25 an hour. In our latest Why It Matters segment, Voice of San Diego CEO Scott Lewis says that’s created a new player in local politics.

Amid a legal fight over California’s power to regulate car and truck pollution, state agencies are suggesting policies that need stable funding, legislative action, or lengthy rulemaking.

Stream now with the PBS app. What do fossilized leaves, an asteroid, and Florida sinkholes have in common? Dr. Kirk Johnson is Sant Director at the Smithsonian Institution, National Museum of Natural History, and has the answers. Kirk oversees one of the largest natural history collections on the planet – and he’s spent his career digging into the story of life on Earth across millions (and billions) of years.

What do fossilized leaves, an asteroid, and Florida sinkholes have in common? Dr. Kirk Johnson is Sant Director at the Smithsonian Institution, National Museum of Natural History, and has the answers. Kirk oversees one of the largest natural history collections on the planet – and he’s spent his career digging into the story of life on Earth across millions (and billions) of years.