White Roofing Climate Change

The conditions would of course be very different in california to those found in.

White roofing climate change.

In urban areas white roofs also help lower smog levels by lowering local temperatures which tend to be higher due to the large proportion of paved surfaces. In a paper published in the journal of climate authors mark z. It found that a clean white roof that reflects 80 of sunlight will stay about 31c cooler on a summer afternoon. It found that even in auckland s temperate climate white roofs reduced the need for air conditioning during hotter periods without reducing comfort during cooler seasons.

White roofs are not a global warming silver bullet study finds plans to slow climate change by reflecting sunlight back into space could in fact raise temperatures a new study concludes in. Keith oleson of the national center for atmospheric research in boulder colorado looked at what might happen if every roof in large cities around the world were painted white raising their reflectivity known to climate scientists as albedo from a typical 32 percent today to 90 percent. When stanford university engineer mark jacobson and his grad student john hoeve modeled the total climate response to white roofs and other urban surfaces they found the lightening may actually. But sometimes the climate system can surprise you what seems like common sense may prove to be not so commonsensical.

He found that it would decrease the urban heat island effect by a third enough to reduce the maximum daytime temperatures by an average of 0 6 degrees c and more in hot sunny regions such as the. Critics have suggested white roofs do. The lab s research confirms the arizona findings that white roofs reduce global warming proving three times more effective at countering climate change than even green roofs thanks to all that.