se preparer a un job dating - Carbon dating disproved
Paul Mac Rae, June 24, 2008 Most geologists aren’t part of Al Gore’s “100 per cent consensus” of scientists that humans are the principal cause of global warming and that we have to take drastic steps to deal with it.For example, in March 2008, a poll of Alberta’s 51,000 geologists found that only 26 per cent believe humans are the main cause of global warming.
Also, note that the interglacial peaks are very steep.
Before an interglacial becomes a glacial, warming occurs relatively rapidly (if the warming was slow, the curve would be more rounded), and cooling also occurs rapidly.
Our interglacial, the Holocene, began about 13,000 years ago, so we’re well past the half-way point in this cycle of warming and looking at a new glacial in the next few centuries or millennia.
Warming is, therefore, from the geologist’s point of view, the least of our problems.
Among all my liberal and leftist friends (and I am certainly one of those), I know not a one who does not accept that global warming is an event caused by mankind.
I do not know one geologist who believes that global warming is not taking place.
There are several salient points about our earth that the greenhouse theorists overlook (or are not aware of).
The first of these is that the planet has never been this cool.
It’s possible to look at a graph of the past century and conclude: “Oh, my God, the planet is burning up!
” After all, the temperature has been rising, more or less, since the 1850’s, with a dip from the 1940’s to the mid-1970’s. Only 400 years ago, the planet was quite cold, a period known as the Little Ice Age (roughly 1300-1850).
Forty-five per cent believe both humans and nature are causing climate change, and 68 per cent don’t think the debate is “over,” as Gore would like the public to believe.