Growing up in Hampton, the face of science was brown like mine.

I knew a lot of black scientists, engineers, and mathematicians, and female mathematicians and engineers, women of all backgrounds. So this idea that anyone could be an engineer, a mathematician, or whatever, was something that I had grown up with and thought was really normal.

Our next-door neighbour taught physics at Hampton University. Our church abounded with mathematicians. Supersonics experts held leadership positions in my mother's sorority, and electrical engineers sat on the board of my parents' college alumni associations.

My dad worked at NASA his whole career; he's a research scientist.

How we grow food has enormous effects on the environment - climate change as well as pollution of air, water, and soil.

When you think about climate change, that means that we won't have an Earth to be lonely on.

As an issue, climate change was unlucky: when nonspecialists first became aware of it in the 1990s, environmental attitudes had already become tribal political markers.

Hollywood is the perfect conduit for the urgent message about climate change. We raise awareness all the time. We routinely take a film that nobody knows about and get 80 percent of the public to know about it in just 30 days. That's called marketing. We need to harvest Hollywood for climate change awareness.