The big climate change challenge part 1

Published: Nov. 12, 2009, 10:15 p.m.

b'Lisa Cohn from EE Markets interviews Michael R. Woelk, president and CEO, Picarro, Inc., about the need for the US to measure whether its (proposed) climate change legislation is working. Scientists need to be able to measure data all day, every day, and from a variety of locations in order to detect actual greenhouse gas trends over large temporal scales, he says.'