This message comes from BetterHelp.

Can you think of a time when you didn't feel like you could be yourself,

like you were hiding behind a mask?

BetterHelp online therapy is convenient, flexible

and can help you learn to be your authentic self,

so you can stop hiding,

because masks should be for Halloween fun, not for your emotions.

Take off the mask with BetterHelp. Visit BetterHelp.com today to get 10% off your first month. That's BetterHelp, help.com.

This is a podcast extra from nature. This year marked a seismic shift in the public discourse surrounding climate change.

Together, the school strikes, led by Greta Thunberg and the Extinction Rebellion Movement, sparked conversation and controversy.

My name is Sarah Abdullah, and I'm the chief opinion editor here at Nature.

Back in September, I was on the nature

podcast talking to Farhana Yamin, an international lawyer turned Extinction Rebellion activist. She made

headlines this year by gluing herself to the headquarters of the British petrochemical

company Shell. Our conversation was much longer than what we aired on the show,

and as the year draws to a close,

we thought we'd bring you an extended version.

I know, nice to see you again.

You found it okay.

Yes, absolutely.

We've done.

Don't let me forget my coat when I go.

...