Ice once covered most of N. America not too long ago. Can someone tell me what kind of machines we had 50,000 years ago that started melting all the ice?
2007-11-02 17:13:02 · 9 answers · asked by Anonymous in Politics & Government ➔ Other - Politics & Government
Previous climate changes were caused by the Earth's natural cycles. According to these cycles, we should be in the middle of a cooling period right now.
"An often-cited 1980 study by Imbrie and Imbrie determined that 'Ignoring anthropogenic and other possible sources of variation acting at frequencies higher than one cycle per 19,000 years, this model predicts that the long-term cooling trend which began some 6,000 years ago will continue for the next 23,000 years.'"
http://en.wikipedia.org/wiki/Milankovitch_cycle
So clearly the current warming is not part of a natural cycle. Particularly since we're currently warming at a rate 20 times faster than when the Earth is naturally coming out of an ice age (which we're not doing right now).
http://en.wikipedia.org/wiki/Image:Ice_Age_Temperature.png
If you study the issue further, you'll see that all the scientific evidence shows that humans are the primary cause of the current global warming.
2007-11-05 05:39:35 · answer #1 · answered by Dana1981 7 · 0⤊ 0⤋
Clearly there are natural cycles to the warming and cooling of the earth, hence the ice ages.
However, since the industrial revolution there has been UNPRECEDENTED WARM of the earth. This warming is caused by billions of people BURNING tons of oil, coal, natural gas and other combustibles. Changes in the earth's temperature that should have taken THOUSANDS OF YEARS are happening in one hundred years.
If you really don't believe man has effected the climate, why don't you take your entire net worth and purchase some water front land for you children. That would be a real good investment....
2007-11-03 00:39:23 · answer #2 · answered by spay&neuter-all-republicans 3 · 1⤊ 0⤋
No. The earth goes through cycles of cold and warm, and will long after we are gone. However, it seems in the last 100-200 years, there has been a quicker rate of warming than there should be. My mom mentioned the other day that when she was young (we live in Missouri) there used to be 10 inches of snow every time it snowed. In the last few years, when it snows, it snows a little teeny bit... except for once last year when it snowed about 15 inches.
2007-11-03 02:58:23 · answer #3 · answered by Anonymous · 1⤊ 0⤋
The human race may have some slight impact on the warming of our planet, but the truth is this: The planet Earth is still coming out of the last Ice Age of 10,000 years ago. The warming of the planet is still in a natural cycle. I won't deny that we could be having some enhancing negative effects to that cycle, but the number one greenhouse gas on the Earth is water vapor. We don't have a lot of effect on the hydrological cycle. Where we are probably having the most detrimental effect on our planet's ability to self-regulate is in the slashing and burning of the rain forests. Every tree that is killed is that much less carbon dioxide that cannot be recycled into breathable oxygen. Our oceans cannot absorb the excess of carbon dioxide forever, and when the oceans are saturated (and they are getting there a lot more quickly than we want to think about)... then we're going to be in trouble.
2007-11-03 00:40:16 · answer #4 · answered by Milton a.k.a. the building pyro 4 · 2⤊ 1⤋
No, global warming comes and goes in cycles on the planet, and strong evidence shows similar climate changes on other planets in the solar system.
2007-11-03 00:27:57 · answer #5 · answered by smsmith500 7 · 1⤊ 2⤋
According to undisclosed sources, cavemen were very flatulent because of their raw meat and berry root diets. It has been said that many of the cave paintings had to be reworked because the original artwork peeled off the wall. Why do you think early man started loosing body hair? Fossil records show gas nodules in some of the bones that proves they walked hunched over because of the pain in their abdomen.
2007-11-03 00:25:51 · answer #6 · answered by unclewill67 4 · 2⤊ 3⤋
so... you're saying that because nature caused an action in the past...
that ONLY nature can cause the same action in the future...
yeah... that's a really good point...
by the same logic, if lightening causes a forest fire, only lightening can cause future forest fires...
do conservatives really think about what they say?
2007-11-03 00:37:13 · answer #7 · answered by Anonymous · 2⤊ 1⤋
Great point. Don't expect any sensible answers. Those who believe in man made global warming are bumper sticker liberals who haven't done any research to find the truth.
2007-11-03 00:15:44 · answer #8 · answered by Stop Ranting 5 · 3⤊ 3⤋
it was the Native Americans, driving their S.U.V.s,.....
2007-11-03 00:33:12 · answer #9 · answered by Anonymous · 2⤊ 2⤋