Over the past year, anecdotal evidence for a cooling planet has exploded. China has its coldest winter in 100 years. Baghdad sees its first snow in all recorded history. North America has the most snowcover in 50 years, with places like Wisconsin the highest since record-keeping began. Record levels of Antarctic sea ice, record cold in Minnesota, Texas, Florida, Mexico, Australia, Iran, Greece, South Africa, Greenland, Argentina, Chile -- the list goes on and on. No more than anecdotal evidence, to be sure.
But now, that evidence has been supplanted by hard scientific fact. All four major global temperature tracking outlets (Hadley, NASA's GISS, UAH, RSS) have released updated data. All show that over the past year, global temperatures have dropped precipitously.
Meteorologist Anthony Watts compiled the results of all the sources. The total amount of cooling ranges from 0.65C up to 0.75C -- a value large enough to erase nearly all the global warming recorded over the past 100 years. All in one year time. For all sources, it's the single fastest temperature change every recorded, either up or down.
Scientists quoted in a past DailyTech article link the cooling to reduced solar activity which they claim is a much larger driver of climate change than man-made greenhouse gases. The dramatic cooling seen in just 12 months time seems to bear that out. While the data doesn't itself disprove that carbon dioxide is acting to warm the planet, it does demonstrate clearly that more powerful factors are now cooling it.
Recall also my post where I observed the not so subtle shift in environmentalist rhetoric from "global warming" to "climate change." Here was a reader comment written in at the end:
Global warming or climate change?
By maven81 on 2/26/08, Rating: 2
By maven81 on 2/26/2008 1:46:37 PM , Rating: 2
Correct me if I'm wrong, but hasn't the debate over the past few years shifted from "we're facing global warming" to "we're facing climate change"?Because if we talk about climate change the evidence you present does not contradict it. If places that have never gotten snow before are suddenly getting snow that is indeed climate change. Now as to what's causing it, I think that's the real question.
No, that's really not the question. Climate does change. We know that since it has been changing since the Earth formed over 4 billion years ago. What is the best way to adapt? Quoting Dr. Reisman (http://georgereisman.com/blog/2008/02/word-to-environmentalists.html#links):
More fundamentally, what is the appropriate method for Man to use in dealing with Nature in general? Is it the motivated and coordinated human intelligence of all individual market participants that is provided by a free market and its price system? Or is it the unmotivated, discoordinated chaos in which one man, the Supreme Dictator, or a handful of men, the Supreme Dictator and his fellow members of the Central Planning Board, claim a monopoly on human intelligence and on the right to make fundamental decisions?