The common narrative about human population that it will grow forever is dead wrong. Demographic experts now agree that population will peak soon and begin to decline, with profound impacts on every aspect of global society, including energy and the environment. Explore these surprising revelations with Darrell Bricker, author of Empty Planet, and Dean Spears, author of After the Spike.

To curb global warming, governments often focus on reducing CO2 emissions. But many are now also adapting to a changing climate, from expanding air conditioning and passive cooling techniques, to engineered and nature-based solutions to counter sea-level rise. We discuss with Vijay Limaye from the National Resources Defense Council, and Susan Asam, VP of Climate Planning at ICF, a consultancy.

Carbon markets were created to try to reduce CO2 emissions. There's a compliance market, in which governments set emission limits and companies comply, often by trading credits. And a voluntary market, where companies and consumers voluntarily buy credits. We'll explore both with Jamie Keech, Executive Chairman of Vida Carbon, and Kaya Axelsson from University of Oxford Net Zero.

n part 1, we explored compliance and voluntary markets. Now we look at brokers and traders, market forces that help set prices, the emissions reduction potential of low vs. high price credits, and the importance of better regulation and verification. Expert guests again are Kaya Axelsson, Head of Policy and Partnerships at University of Oxford Net Zero, and Jamie Keech of Vida Carbon.