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“There’s going to be at some point a cascade of events that happen that we’re not going to be able to just hit rewind,” said Kimberly Prather, distinguished chair in Atmospheric Chemistry at UC San Diego.

From Paleo to vegan to raw, nutrition gurus package their advice as sound science. But peel the studies away and you'll find timeless myths and superstitions of religion.

In the great household debate about refrigerating tomatoes, there's some new scientific evidence on the no-fridge side. But some taste testers are not convinced.

The kids look so darned cute in that photo, it's hard not to post it online for all to see. But there are privacy risks to sharing children's images, and children often don't want the exposure.

After many setbacks for genetic therapies, advisers to the Food and Drug Administration recommended approval of the first gene treatment for an inherited form of blindness.

The city of Del Mar plans to issue a new draft report this week on how to adapt to sea level rise. The report has been changed to remove a strategy that homeowners fear could affect their property values.

Last school year, districts in San Diego and Imperial counties had to hire more than 700 teachers who had not yet finished their training. Where many see a troubling trend, others see a promising solution.

You may love or hate "the wave" as it sweeps through spectators at baseball, football and soccer games. But physicists say the synchronized action shows how humans are like particles.

Airs Wednesday, Jan. 18, 2017 at 8 p.m. on KPBS TV

The California Superintendent of Public Instruction Tom Torlakson was in San Diego Thursday to draw attention to California's teacher shortage.