Smoggy Power Lines (IMAGE) Carnegie Institution for Science Caption Carnegie's Ken Caldeira and Nathan Myhrvold of Intellectual Ventures say that climate change due to greenhouse gas emissions is fast out of the starting gate but then slows down, and takes a long time to approach the finish line. Credit Photo by Marina Shemesh, courtesy of <a htarget="_blank"ref="http://PublicDomainPictures.net">PublicDomainPictures.net</a> <a target="_blank"href="http://www.publicdomainpictures.net/view-image.php?image=17407&picture=smog-and-electric-lines">http://www.publicdomainpictures.net/view-image.php?image=17407&picture=smog-and-electric-lines</a> Usage Restrictions With Credit. License: <a target="_blank"href="http://creativecommons.org/publicdomain/zero/1.0/">Public Domain</a>. If you are going to redistribute this image online, a hyperlink to <a target="_blank"href="http://www.publicdomainpictures.net/view-image.php?image=17407&picture=smog-and-electric-lines">this particular page</a> is mandatory. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.