The Earth’s natural carbon sinks absorb half of our pollution. But now, they appear to be collapsing. Why is this happening – and will we be able to reach our climate goals without them?

Also this week, why a psychologist won the Nobel Prize in Physics, the culprit behind the second biggest mass extinction event, and does playing video games make you smarter?

Presenter: Marnie Chesterton

Producers: Sophie Ormiston, Ella Hubber, Anna CharalambouEditor: Martin SmithProduction Co-ordinator: Andrew Rhys Lewis BBC Inside Science is produced in collaboration with the Open University.