Presented by Piers Sellers, NASA/GSFC, Greenbelt, Maryland, USA
The Planetary Sciences and Biogeosciences Sections of AGU and the Planetary Society jointly sponsor the Sagan lecture. It is presented annually by a prominent scientist at the AGU Fall Meeting who addresses issues in Astrobiology and the development of life on Earth. With the lecture, we honor Carl Sagan as a scientist, educator, and critical thinker who brilliantly combined the disciplines of biology, physics and planetary science in his work, and who inspired countless young people to pursue the study of the Earth and other planets.
Sellers gives us an overview of what has been happening to the planet these past decades in a series of stunning sateliate images; temperature increases, the loss of sea ice, population increase and glacier retreat.
As Sellers notes: “Things are happening faster than the models.”
Note 1: I’ll continue to post the most interesting video presentations from the AGU conference for those interested.
Note 2: To clarify, we can look forward to an ice-free pole during the summer months in 20-30 years time.