This week, we introduce a new segment on our weekly environmental policy podcast, Parts Per Billion: a news quiz where you can test your knowledge of current events against Bloomberg Environment’s finest journalists.

We also hear from one of those journalists, climate reporter Abby Smith, about an on-again-off-again lawsuit from a group of young people who are arguing that the government has a constitutional duty to combat climate change.

Host: David Schultz.

Producer: Jessica Coomes.

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