Because white reflects most of the heat back to the space?
2007-12-14 08:46:54 · 15 answers · asked by Carlos G 3 in Environment ➔ Global Warming
No. Cities cover a very small fraction of the Earth's surface. Check out Google Earth some time to see this for yourself.
This would help keep cities cooler by counteracting the urban heat island effect somewhat, but this is a local effect which does not impact global temperatures, so it would not impact global warming.
2007-12-14 08:54:02 · answer #1 · answered by Dana1981 7 · 2⤊ 0⤋
specific, if it replaced into inexpensive. Edit: Michael's incorrect. form of three% of the earth's floor is roofed with homes. The earth reflects approximately 29% of the sunlight that falls on it. cities reflect extra sunlight that the international average. portray all roofs white would desire to nudge the mirrored image as much as 30% - this could bring about a drop in worldwide temperature of as much as a million c - very nearly precisely cancelling out the international warming that has taken place because of the fact the beginning up of the commercial revolution.
2016-10-11 07:22:28 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Actually, this makes more sense than any of the other 'solutions' that I've seen discussed...that is...if you believe in "man-did-it" global warming. Afterall, some scientists are lamenting their 'finding' that the Greenland ice shelf is melting.....and as such...is hindering the Sun's rays from reflecting back into space. If all buildings, parking lots, streets were 'whitened'....logic says that the Sun's heat would be reflected away from us!!
2007-12-14 10:20:40 · answer #3 · answered by BB 7 · 0⤊ 0⤋
Even if this could have a measureable effect in the summer, the roofs would do the same thing in the wintertime, requiring the burning of more fuel for heat.
2007-12-15 02:13:26 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Ok, white roofs have a high albedo, which means that they reflect more light, not neccesarilly heat, also, there aren't enough houses to do mcuh in that effect
2007-12-14 08:57:18 · answer #5 · answered by ŠתּἇʀʅʏȻħȁɾɭɏ44 5 · 0⤊ 0⤋
the holes in the ozone layer prevent uv radiation from re entering space. by the way the worlds oceans and surface water do a pretty good job already of reflecting rays and they take up the majority of the world.
2007-12-14 08:53:25 · answer #6 · answered by opps 3 · 0⤊ 2⤋
Anodized aluminum would be better (e/a = 6 vs e/a = 5.6 or 5.8). But either way it is a pipe dream.
2007-12-14 12:20:39 · answer #7 · answered by Joe 2 · 0⤊ 0⤋
hey....you got a point there! But, i'm not sure if it really would stop global warming...sadly. That's an awesome question though!!!!!
2007-12-14 08:50:32 · answer #8 · answered by neoavihelp 1 · 1⤊ 0⤋
No that would not solve global warming.
2007-12-14 08:49:58 · answer #9 · answered by Pam H 6 · 1⤊ 0⤋
Inventive, but doubtful. Most of the world is not covered by houses!
2007-12-14 08:49:49 · answer #10 · answered by Anonymous · 3⤊ 0⤋