Many now embrace nuclear energy as a low-carbon, always-on, domestic energy source. If the US wants to build more, we'd need to overcome budget and schedule overruns, complicated permitting, a stagnated industry and broken supply chain. Sama Bilbao y Leon, Director of the World Nuclear Association, and Adam Stein, Director of Nuclear Energy Innovation at Breakthrough Institute, offer solutions.

Even if we live inland, we rely on the ocean -- for food, shipping, rainfall and more. In part 1 we look at the health of fisheries and other sea life, how CO2 and warming affect the oceans, and how both of those affect us. Expert guests are Dr. Margaret Leinen, former Director of the Scripps Institution of Oceanography, and Dr. Rick Spinrad, former Administrator for NOAA.

In part 1, we looked at fisheries and the impacts of warming and CO2 on the ocean. In part 2, we discuss plastic pollution, fertilizer runoff and oil spills, coastal erosion and deoxygenation -- and potential solutions. Guests again are Dr. Rick Spinrad, former Administrator for NOAA, and Dr. Margaret Leinen, former Director of the Scripps Institution of Oceanography.

7 billion people live in energy poverty. How to help them become 'energy rich?' Start with industry. Large electricity consumers draw international investment and provide utilities revenue to build power plants. Add regulation to protect workers and reduce corruption. With Katie Auth, from the Energy For Growth Hub, and Arjun Murti, from Veriten, an energy research and investing firm.

Climate models are complex computer programs built on atmospheric science. Scientists input carbon emissions, warming, rainfall or other data to try to predict future climate. We'll learn how they work with Dr. Natalie Mahowald, Director for Graduate Studies of Atmospheric Science at Cornell University, and Dr. Alan Robock, Distinguished Professor of Atmospheric Science at Rutgers.