SciShow: InfusionHank explains the power of solar energy and describes how it may fit into our diversified energy future.

He also discusses the following topics:

The power of epigenetics, which studies the factors that determine how much or whether some genes are expressed in your body.

Five scariest things that will likely happen because of climate change. Some of the surprising things that could be causing or contributing to the obesity epidemic.

The issues of rising global population. The impacts of exotic invasive species on ecosystems while introducing us to a couple interesting individuals.

The story of his favorite genius lady scientist and radioactive superhero, Marie Curie. The challenges involved in manned space travel to Mars, and sends us a message from his 17-year-old self.

Watch the full documentary now (playlist - 1 hour, 25 minutes)