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"
By airship to the North Pole -- Zeppelin expedition will survey sea ice in the Arctic."But it's not.
Posted by Edward Willett at 14:59, April 17th, 2007 under Blog |
...here's another interview with a German climatologist (one who very much agrees climate is changing and we're largely responsible, before you ask) taking issue with the tone of the discussion: "
We Have to Take Away People's Fear of Climate Change."
Posted by Edward Willett at 18:26, April 6th, 2007 under Blog |
That's what three scientists, one from Denmark and two from Canada,
say in a new paper:The entire debate about global warming is a mirage. The concept of ‘global temperature’ is thermodynamically as well as mathematically an impossibility, says professor at The Niels Bohr Institute, University of Copenhagen, Bjarne Andresen who has analyzed this hot topic in collaboration with professors Christopher Essex from University of Western Ontario and Ross McKitrick from University of Guelph, both Ontario, Canada.It is generally assumed that the atmosphere and the oceans have grown warmer during the recent 50 years. The reason for this point of view is an upward trend in the curve of measurements of the so-called ‘global temperature’. This ...
Posted by Edward Willett at 16:28, March 15th, 2007 under Blog |
There's a
legitimate rival theory about the most important thing driving climate change.
Posted by Edward Willett at 17:30, February 12th, 2007 under Blog |
The surface of our planet is nice and cool. (A little too cool, this time of year.) But not all that far beneath us, it's anything but. In fact, says Chris Marone, Penn State professor of geosciences, enough heat emanates from the interior of the planet to make 200 cups of hot coffee per hour for each of Earth's 6.2 billion inhabitantsThe Earth consists of three concentric layers. We're on the crust, hard and thin (from 10 to 100 kilometres thick). Under that is the mantle, made of molten rock and about 2,900 kilometres thick. At the center of the planet lies the core, consisting of an inner part about the size of the moon that is essentially ...
Posted by Edward Willett at 17:48, February 6th, 2007 under Blog, Science Columns |
...when people start preaching inevitable doom and gloom climate-wise due to global warming, it puts my back up.Yet, when people try to tell me there is no such thing as climate change, it annoys me just as much.Where's a middle-of-the-road, yes-there's-a-problem-but-it-ain't-the-end-of-the-world-yet kind of guy to do?Turns out there's a whole middle ground to the climate wars, and it's the one that many of the professional climate scientists occupy. And they find themselve vilified by both sides of the debate.FuturePundit
writes a great post that neatly encapsulates my own feelings on the topic (thus saving me the trouble of doing so).I love it when that happens.Read it!
Posted by Edward Willett at 4:04, January 8th, 2007 under Blog |
A lot of attention in Canada has been focused recently on the Kyoto Agreement to limit the emission of greenhouse gases. But scientifically, the goal for preventing possibly catastrophic global warming has been set far higher than Kyoto's modest reductions.
An article in the November 1 issue of Science sets out the challenges. Entitled "Advanced Technology Paths to Global Climate Stability: Energy for a Greenhouse Planet," it was written by a team of 18 scientists and engineers from major universities (including McGill), U.S. government laboratories and agencies, and even Exxon Mobil. The U.S. Department of Energy funded the project.
The level of carbon dioxide in the atmosphere has increased from 275 to 370 parts per million ...
Posted by Edward Willett at 11:32, November 5th, 2002 under Blog, Columns, Science Columns |
This week an international expedition set out for Mt. Logan, Canada's highest mountain (and yes, it's still Mt. Logan, not Mt. Trudeau) to attempt to travel through time: to look back 10,000 years to see how climate has changed over the millennia--and how human activities are affecting climate now.
Two Canadian scientists will climb to very Mt. Logan's 5,959-metre peak and extract a 225-metre cylinder of ice from its glaciers. A core was taken in 1980, but the technology didn't exist then to take one as long as will be taken this time--and the longer the ice core, the farther into the past you can look. ...
Posted by Edward Willett at 18:35, April 30th, 2001 under Blog, Columns, Science Columns |
What with all the talk about the greenhouse effect recently, I decided it's time for a quick review...
The term "greenhouse effect" is usually used today in reference to a predicted gradual warming of the Earth caused by an increase in various gases in the atmosphere, primarily due to human activity.
Really, however, the greenhouse effect has been at work for eons, which is a good thing, because it's what keeps Earth's mean surface temperature high enough (17 degrees Celsius) for life to thrive.
About 40 percent of the energy we receive from the sun arrives at such short wavelengths that it zips through the atmosphere unimpeded. ...
Posted by Edward Willett at 11:58, November 13th, 1997 under Blog, Columns, Science Columns |
Considering how cold it's been around here recently, global warming sounds not so much like an environmental problem as it does something devoutly to be wished for--but as someone once said, "Be careful what you wish for--you may get it."
While it's true that science has yet to come flat out and say that global warming, the anticipated result of mankind's pumping of billions of tonnes of heat-trapping carbon dioxide and other gases into the atmosphere every year, has unequivocally begun, the evidence is mounting--and one place where the evidence may soon become crystal clear is Antarctica.
As far back as 1978, a paper in the science journal Nature suggested ...
Posted by Edward Willett at 5:41, January 29th, 1996 under Blog, Columns, Science Columns |