2006-10-31 04:45:42 · 12 answers · asked by Anonymous in Environment
about 1 degree
2006-10-31 04:52:28 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Check out the graph to see how the average temperature has risen over the since 1860 to today. And here is an extract from a news item (see second link for the full item) to give you an idea of the impact we have on the gobal temperature.
NARRATOR: For 15 years Travis had been researching an apparently obscure topic, whether the vapour trails left by aircraft were having a significant effect on the climate. In the aftermath of 9/11 the entire US fleet was grounded, and Travis finally had a chance to find out.
DR DAVID TRAVIS: It was certainly, you know, one of the tiny positives that may have come out of this, an opportunity to do research that hopefully will never happen again.
NARRATOR: Travis suspected the grounding might make a small but detectable change to the climate. But what he observed was both immediate and dramatic.
DR DAVID TRAVIS: We found that the change in temperature range during those three days was just over one degrees C. And you have to realise that from a layman's perspective that doesn't sound like much, but from a climate perspective that is huge.
NARRATOR: One degree in just three days no one had ever seen such a big climatic change happen so fast. This was a new kind of climate change. Scientists call it Global Dimming. Two years ago most of them had never even heard of it, yet now they believe it may mean all their predictions about the future of our climate could be wrong. The trail that would lead to the discovery of Global Dimming began 40 years ago, in Israel with the work of a young English immigrant called Gerry Stanhill. A trained biologist, Gerry got a job helping to design irrigation schemes. His task was to measure how strongly the sun shone over Israel.
2006-10-31 13:02:48 · answer #2 · answered by wandera1970 6 · 0⤊ 0⤋
By none, as accurately as we can measure.
I do not believe anybody who says they can measure the average temperature of the Earth to within 1 degree. It would have to be some very complicated average of all the hot deserts, cold glaciers, hot summers, cold winters, different air, ground and water temperatures, and so on. Nobody could do it.
2006-10-31 14:15:20 · answer #3 · answered by campbelp2002 7 · 0⤊ 0⤋
I believe it has been 1 degree in the past 100 years.
2006-11-01 11:20:18 · answer #4 · answered by Sarah* 7 · 0⤊ 0⤋
global warming has been happening since before the end of the last ice age (global warming is natural humans do not cause it) so it would have to be a lot
2006-10-31 12:53:56 · answer #5 · answered by David M 3 · 0⤊ 1⤋
I think it is 1C globally, but i think here in London, we are already seeing the effects October was the warmest on record ever... And not to mention the rising sea levels... etc
2006-10-31 12:54:46 · answer #6 · answered by stardom 2 · 1⤊ 0⤋
We will continue to get warmer as we get closer to the sun, I think I read that we will be too hot for anyone to live on the planet in 300 million years. I'm real concerned about 300 million years
2006-10-31 12:53:25 · answer #7 · answered by myothernewname 6 · 1⤊ 1⤋
1 or 2 I think that is Celsius so it is quite a lot, but you will have to wait till the air conditioners of the Great leaders brake down before they do anything about it.
2006-10-31 12:56:03 · answer #8 · answered by ? 6 · 0⤊ 1⤋
From it's early days, the earth has cooled hundreds of degrees!
2006-10-31 12:54:52 · answer #9 · answered by dobiepg 3 · 1⤊ 0⤋
on average 0.5 degrees celcius over the last century.
2006-10-31 12:54:59 · answer #10 · answered by Jenny 3 · 0⤊ 0⤋