how cold would the earth be if there were no greenhouse gases? please include sources
2007-05-13 08:40:39 · 5 answers · asked by CBroxmysox 3 in Environment ➔ Global Warming
Between 32 and 33 degrees Ceslius colder than it is.
The average global temperature is a little short of 15 C so with no greenhouse gases temperatures would fall to about -18C.
If this has have been the case in the past then the planet would have been frozen in most places and lifeforms would have evolved very differently. Humans wouldn't exist, there may have been some other very different form of life that dominated the planet.
2007-05-13 10:45:01 · answer #1 · answered by Trevor 7 · 1⤊ 0⤋
I am sorry that I do not remember my sources, but it would be ice age cold, consider the difference in temperature of your car if you leave it in the sun with the windows up and doors closed verses its temperature when the doors have been opened.
Oh and just a side note but mars is really hot, because of its proximety to the sun.
2007-05-13 16:35:15 · answer #2 · answered by Han Solo 6 · 0⤊ 0⤋
Actually Mars is warming.
There is only one answer to the question. Review history before we started manufacturing "things", all things. This would be about 2 hundred years ago.
The temperature would be close to that, but there were no records to compare to, as we weren't keeping track back then.
2007-05-17 09:54:46 · answer #3 · answered by hfngotsail 1 · 0⤊ 0⤋
Really cold, think Mars.
2007-05-13 15:50:18 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I don't know, but have you tried checking wikipedia?
2007-05-17 06:34:20 · answer #5 · answered by David W 4 · 0⤊ 0⤋