Quote:
|
Originally Posted by Praxus
Satilites have shown a zero degree increase in Tempature. They are the only true global temperature measurers. Land stations, are just that land stations. Most are concentrated in the Northern Hemisphere, near large cities, that give off a lot of heat.
Catastrophic global warming is a myth.
|
The heat island effect was investigated in a paper in Nature a few months ago. What they did was measure the temp on a windy night and on a still night. You would expect that if there was heat trapping within the cities, then the temp would be higher on the still nights. But they showed there was no statisitcally significant difference between the two. It doesn't mean there is no heat island effect, but it does show that if the effect is there, it doesn't make much of a difference. Also, they can measure temperatures from ships too, which show surface warming.
But as for satellite data, as far as I know, it is showing an increase in surface temperature as well. I think the idea that satellite measurements were not increasing was a misunderstanding that was resolved.
http://en.wikipedia.org/wiki/Satelli...e_measurements