With so many COVID test options on the market, what tests are best—and when should you use them to prepare for holiday gatherings? Plus, how scientists are using genetic sequencing to better understand how tumors are created.

Action on climate change is slower than many activists would like. And why payment for “loss and damage” is crucial for vulnerable nations. Plus, how California is grappling with a year-long fire season. And what we can learn from our bright and bushy friend, the squirrel.

We celebrate Science Friday’s 30th anniversary by remembering some of our favorite moments of the show. Plus, children aged 5 to 11 can now get Pfizer’s vaccine. What’s next? And, the road ahead for Kansas’ 20 year-old wind farm industry.

On our final installment of this fall’s SciFri Book Club, we hear stories from those who’ve already experienced sea level rise in their communities. Plus, how maggots revolutionized modern medicine. And a haunting howling soundscape of the wolves who used to permeate Europe.

The history of how Filipino nurses have propped up America’s medical system. Plus, wetland oases created by beavers are surviving even the West’s new megafires. And some DIY tips to booooost your Halloween.

Biological samples have been used for purposes that don’t benefit indigenous people. The Native BioData Consortium is working to change that. Plus, how a Long Island tribal nation is fighting climate change and development. And why saving the wetlands can save the world.

How was air-conditioning invented—and how will it exist in our climate-changed future? Plus, the U.S. was woefully unprepared for COVID-19. Can we change before the next pandemic? And researchers found a group of neurons that are specifically for recognizing faces.

The Science Friday Book Club kicks off with a discussion of rising seas, vulnerable wetlands, and human adaptation. Plus, how science has progressed and changed over a hundred years. And, as endangered primates disappear, so do their parasites. That could have big ecological consequences.

Two bills aim to reduce the U.S. carbon footprint. What’s in them? Plus, how to decommission a nuclear power plant. And the aye-aye and opossum compete for the crown for the final round of the Charismatic Creature Carnival.

Worsening fires are now a fact of life for the west. But can we coexist with them? Plus, new findings suggest that streetlights are contributing to the decline of insect populations. And two creatures of the night battle it out during the Charismatic Creature Carnival.