Uncharted Waters

If mussels could talk they might tell you that they are concerned about climate change.

Also on the programme: The average fish, served to diners in American restaurants, has travelled 5,000 miles before ending up on a plate; Coke and Pepsi bury the hatchet to work together in Mexico — planting trees; some schools in the US adopt a new, more accurate world map; presenter Marco Werman says goodbye to his car mechanic; plus we jam out to some Astro-Atlantic Hypnotica from the Cape Verde islands.

(Image: A man inspects a mussel as part of the first harvest of the year in the Netherlands, July 8, 2015. Credit: Robin Van Lonkhuijsen/AFP/Getty Images