Jonathan Lauderdale is an oceanographer and ocean climate modeler at MIT, the alma mater of Peter Fiekowsky, who is now promoting research into the effects of sprinkling iron into oceans. It makes phytoplankton multiply, which removeds CO2 from the air, so that some of it sinks and sequesters carbon. For the video, audio podcast, summary and comments: https://tosavetheworld.ca/episode-607-iron-oceans-climate.