The 2,000-year-old travel list to complete before you die

A little seaweed is a healthy part of oceans, but a lot, and I mean a lot, becomes a toxic tourist repellent. Hey, it's me, Johanna Wagstaff, host of What on Earth, where we help make sense of how people are changing the planet and what we can do about it. On this week's episode, the Caribbean has a problem. Mountains of rotting seaweed are washing up on those. Postcard perfect beaches. You can see it from space stretched across the Atlantic. So how did it become such a nightmare? And could the solution involve rum? And robots, find and follow what on earth wherever you get your podcasts.

This is a CBC Podcast. Hi there, it's Nala here. Thank you so much for listening to ideas. Before we start today's show, I need to ask you for a favor. If you like ideas.

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