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Podcast: The World, the Universe and Us
Episode: #68: Climate change and methane mystery; breathable liquid; covid vaccines
Description: When it comes to climate change, carbon dioxide usually gets the spotlight, but methane, although shorter-lived in the atmosphere, is more potent as a greenhouse gas - and levels have been mysteriously increasing. The team explains where the methane is coming from and how efforts to curb methane emissions could be important in tackling global warming. They then explore the peculiar discovery that pigs can breathe oxygen through the anus, and what that means for future applications in space travel. In coronavirus news, the team highlights the disparity between the rich and the poor in the global vaccine rollout. They...