Forget global warming, it was cold winds blowing through the UN climate summit when Donald Trump was caught in the death stare of teen environmentalist Greta Thunberg.

It was an image that defines the extremes of the climate change debate, Trump doesn’t seem to think there’s much to worry about, whilst Thunberg may be worrying too much for her own good.

ICYMI’s Polly Boiko takes a look at the unexpected confrontation.

For more, follow #ICYMI on Facebook, Twitter, Instagram and YouTube.