I'm taking a year to build an engine that runs on the same process that powers hurricanes. Hurricanes are a heat engine that runs between the heat of the earth'

I'm taking a year to build an engine that runs on the same process that powers hurricanes. Hurricanes are a heat engine that runs between the heat of the earth's surface and the cold of outer space, using water phase changes to drive air movement. CO2 buildup increases that temperature difference. I figure that an engine that directly runs off of global warming could be somewhat useful.