weather hazards by bringing the ocean closer to people. >> tonight cnn is going to host an unprecedented town hall on the climate crisis with ten of the democratic presidential candidates. each one is going to put out their own plans to try to fight this emergency. what specifically do you think our viewers should be looking for in terms of the proposals themselves? carbon reduction, eliminating fossil fuels all together, reaching out to the markets? what do you think? >> i know what i'll be looking for. i'll be looking for plans that recognize the reality of the climate change as us scientists understand it and also to try to find creative solutions that recognize the multiple raelealt or the multiple factors, economic, political, and come up with realistic solutions to slow the rate of greenhouse gas concentrations in the atmosphere