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2007-02-23 04:47:57 · 5 answers · asked by Anonymous in Science & Mathematics Weather

5 answers

Very good question. Don't believe it. If we were to take away the effects of global warming due to an anthropogenic increase in greenhouse emissions, there would still remain according to James Lovelock, author and progenitor of Gaia, a far worse fate awaiting the earth. Permit me to quote from his recent book "The Revenge of Gaia"; "In the very long term, solar warming is a far greater problem for life than our present-day battle with man-made global heating. In about one billion years, and long before the sun's life ends (forecast to be about 5 billion years from now), the heat received by the Earth will be more than two kilowatts per square metre, which is more than the Gaia we know can stand; she will die from overheating." This is not to suggest we throw up our hands and do nothing about our current problems in managing our bio-sphere but it does put it in a different perspective and if true throws out any concern again about global cooling.

2007-02-23 05:48:43 · answer #1 · answered by 1ofSelby's 6 · 0 0

That's a very good question. Most people who refer to global cooling are doing so in the context that it disproves global warming. What they're usually referring to is a period in the 1990's when they claim that scientists were worried about the world cooling down. The vast majority of scientists have, since well before the 1990's, been concerned with global warming. Back then it wasn't a political issue so it was rarely heard of outside scientific circles.

During the 1990's there was a period when the world did cool down slightly for which there is a perfectly well understood reason - namely the eruption of Mount Pinatubo. This spewed huge clouds of volcanic dust into the atmosphere which blocked out some of the sun and led to a small drop in global temperatures. No one thought this meant the world had entered a cooling stage. However, those who like to dispute global warming often cite this as proof the scientists don't know what they're talking about. If they looked at what they scientists have said they'd see that they were absolutely correct in their observations.

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The earth goes through natural warming and cooling phases but it gets complicated because there are phases within phases within phases. Some phases are over huge periods of time and when you talk about Phanerozoic Climate Change you'll see the world has been in a cooling phase for the last 50 million years or so (shortly after the dinosoars died out). http://www.globalwarmingart.com/wiki/Image:Phanerozoic_Climate_Change_Rev_png

Looking back over the last half million years there have been several warming and cooling phases within the much larger general cooling phase http://www.globalwarmingart.com/wiki/Image:Ice_Age_Temperature_Rev_png You'll see from this graph that for the last 18,000 years the world has been warming up but even within that there's been warming and cooling as you can see in this graph over the last 2000 years http://www.globalwarmingart.com/wiki/Image:2000_Year_Temperature_Comparison_png

Yet again there are phases within this as can be seen by looking at temperatures over the last 150 years http://www.globalwarmingart.com/wiki/Image:Instrumental_Temperature_Record_png

What the graphs tell us is that the world warms and cools of it's own accord. It has been doing since long before man set foot on the planet. One thing the graphs clearly illustrate is that the rate at which the world is warming up is faster than it's ever been and that we're currently at the warmest we've been for 18,000 years.

2007-02-23 13:42:48 · answer #2 · answered by Trevor 7 · 0 0

That's so 20 years ago! The big thing now is global 'warming'.
The "scientists" who were predicting a new ice age to begin in the 1990's are now saying that the ice caps will melt by 2020 and we will all drown.

2007-02-23 12:52:25 · answer #3 · answered by credo quia est absurdum 7 · 0 0

You mean global warming. The earth is actually warming up by the min

2007-02-23 12:51:19 · answer #4 · answered by Justin 6 · 0 1

if you don't like the weather just wait...in ten years cooling will be back.. they cant decide

2007-02-23 13:08:18 · answer #5 · answered by Anonymous · 1 0

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