My research is focused is on understanding how Earth’s geography has changed over geological time, and determining the significance of Earth’s changing geography for the evolution of the biosphere and atmosphere. I study current and ancient mountain belts, as mountain systems develop along plate margins and provide a record the long-term movements and plate interactions of continents. Outreach is central to my science, for a public ignorant of the basic workings of the Earth and of the depth of Earth history, will never be able to imagine or comprehend the substantial challenge that ongoing climate change presents for humanity.