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And that is the science.

physics, medicine, nature, or space, time, the brain, life, the universe.

Hello, this week the looming crisis posed by plastic.

It doesn't break down naturally, and most of it ends up either in landfill or it washes into the sea where it's now causing a marine catastrophe.

The science is fighting back and this week we're hearing from the technologists who are making an

environmentally friendly form of plastic from poo and talking to the man who's turning

waste plastic into road repairs.

Plus in the news could we finally eradicate polio? Why things are

shaking up quite literally in the USA and... The killer whale using its blowhole to talk human.

I'm Georgia Mills.

I'm Chris Smith and this is the Naked Scientists.

The Naked Scientists podcast is powered by UKfast.co.

UK. UK.

For a long time the World Health Organization have been trying to eradicate polio and in the last

decade they've got within a whisker of making it happen but the infection is

still stubbornly lurking in just three countries so why is this endgame playing out for so long? The countries in question have had

recurring conflicts and wars which people have suggested could hamper vaccination efforts

and allow the disease to bounce back. But there was no evidence to support this claim.

...