Our most valuable resources - creativity, communication, invention, and reinvention - are, in fact, unlimited.

We need to have a vision of the world we want to create so that we can see ourselves as collaborators with future generations in the project of shaping it.

Humans are possessed, to some degree, with the power of foresight. Yet we so often learn things the hard way, through disaster.

I do comparative studies of climate evolution, and the interactions between planetary atmosphere and surfaces and their radiation environment, and try to understand the environmental factors that can affect a planet's habitability and how they change over time.

Ever since the environmental movement was sparked by photos of the whole Earth taken by astronauts onboard Apollo Lunar Modules, I've seen planetary exploration as an extension of a reverence and care for Earth.

There is a history of thinking about space science from an environmental ethics perspective. And part of what I want to do is turn that back and use that experience to see if it reflects how we think about the Earth.