Hi, I'm Una Chaplin, and I'm the host of a new podcast called Hollywood Exiles.

It tells the story of how my grandfather, Charlie Chaplin, and many others, were caught up in a campaign to root out communism in Hollywood.

Hollywood Exiles from CBC Podcasts and the BBC World Service.

Find it wherever you get your podcasts.

You're listening to the Global News Podcast from the BBC World Service.

Hello, I'm Oliver Conway.

This edition is recorded at 14 hours GMT on Thursday the 8th of February.

Climate scientists express alarm as for the first time, global warming tops one and a half degrees for a full year.

If we don't do something about it, it's only going to increase, it's going to displace more people,

it's going to push more people into food security crisis,

there's so much more impact than what meets the eyes.

The only remaining anti-war candidate in the presidential election in Russia

is blocked from standing against Vladimir Putin.

And a new round of negotiations is taking place in the Middle East.

Also on the podcast,

there have been previous studies that

similarly showed people taking this type of drug had a reduced risk of dementia

and already some work has been done in animals and in humans showing

how this drug might be helping protect the brain.

Signs that Viagra could reduce the likelihood of getting Alzheimer's.

The Earth has just experienced the hottest January on record.

In fact, every month since June has been

...