Our guest will be NASA/JPL research scientist Annmarie Eldering, who specializes in clouds, aerosols and trace gases in Earth's atmosphere. She is currently the deputy project scientist for the Orbiting Carbon Observatory-2, a NASA satellite mission now in development that will measure atmospheric carbon dioxide, the leading human-produced greenhouse gas driving changes in Earth's climate.
Left: April 2001: Heat given off by the Earth's surface and atmosphere and pumped out into space. Right: April 2001: Sunlight reflected back out to space by the oceans, land, clouds and aerosols.
The live video chat will be streamed at http://www.ustream.tv/nasajpl2 on Thursday, April 21 at 10 a.m. PDT/ 1 p.m. EDT. The Web page is open to the general public. The program will be archived on the same page.
Classrooms are strongly encouraged to visit the Web page in advance to make sure their school provides access. We will run a video and audio feed all day on Wednesday, April 20 (starting at 9 a.m. PDT) so we also strongly suggest schools visit the page that day. e question per class.