tag:blogger.com,1999:blog-7426776843743823370.post6284775883956498870..comments2022-03-28T03:36:35.365+05:30Comments on Samhita: Paint the city whitesrinivas chennahttp://www.blogger.com/profile/06276671949579434446noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7426776843743823370.post-15586056625278151342009-01-18T13:54:00.000+05:302009-01-18T13:54:00.000+05:30Ravi, painting roof tops white will at least redu...Ravi,<BR/> painting roof tops white will at least reduce the rate at which global warming happening currently, so we will have some more time to reduce the green house gases. Reducing emissions suddenly is not economically a technically viable. I feel the best thing is try to slow down the process and buy some time to act on the root cause.srinivas chennahttps://www.blogger.com/profile/06276671949579434446noreply@blogger.comtag:blogger.com,1999:blog-7426776843743823370.post-67141473417353976252009-01-13T07:35:00.000+05:302009-01-13T07:35:00.000+05:30Srinu...Thats an interesting idea and it may help ...Srinu...<BR/><BR/>Thats an interesting idea and it may help to some extent, but cannot entirely compensate the melting ice effect.<BR/>Let me elaborate it. The melting ice is not just changing the color. The actual issue is that the melting ice creates lot of water. While ice reflects light (heat), water absorbs some and heats up more. This will inturn melt more ice, creating a spiralling effect. <BR/><BR/>Like you know, its more effective to reduce the green house gases - so that the heat will not be "contained" by the atmosphere. Otherwise, the light (heat) your white-painted rooftops reflect may not really escape the atmosphere... some of it will come back... :)<BR/><BR/>Ravi MAnonymousnoreply@blogger.com