Plastic pollution might be the most visible environmental issue we face today. But there are other kinds of pollution, and they are far harder to see. One of the most dangerous is the huge amount of greenhouse gases that we emit into the atmosphere. In the fourth episode of the Plastisphere podcast, Anja explores the connections between plastic pollution and climate change. She talks to ocean expert and publisher Nikolaus Gelpke, youth activist Lilly Platt, oceanographer Sarah-Jeanne Royer and climate expert Gunnar Luderer to understand whether plastic and climate are buddies or enemies. As with many relationships: It's complicated.