August 5, 2011

Arctic Fires and CO2 Emissions

Filed under: Arctic, Polar

Last week, a widely-repeated pronouncement was made, that after an absence of more than 10,000 years, “wildfires have returned to the Arctic tundra” spurred by an apparent increase in lightning strikes and leading to carbon dioxide (CO2) releases from a traditional CO2 sink region. Another positive feedback to anthropogenic global warming. Oh yeah, and the fires will get worse and more widespread in the future.

But as with most dire global warming predictions, this one seems to lack grounding in reality.

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March 10, 2011

Amazing Arctic Reconstructions

Filed under: Arctic, Polar

We hear over and over that any warming at the global scale will be amplified in the Arctic region of the Northern Hemisphere, and the warming will cause ice to melt and sea level to rise and all the rest. Let some ice-free area appear during summer near the North Pole and the global media will take the bait every time and announce we are witnessing geophysical changes of Biblical proportions. Several articles have appeared recently in leading journals with interesting results regarding the temperature history of the Arctic over the past 1,000 to 1,500 years, and they show that temperatures there have risen and fallen to a significant degree many times in the past (that is, without the benefit of large changes in atmospheric CO2 levels), and they call into question whether any unusual warming (or cooling) has occurred there in recent decades.

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January 31, 2011

Arctic Ice “Tipping Point” Rejected

Filed under: Arctic, Polar

A common rhetorical device to make potential future climate sounds even scarier, is to invoke the concept of “tipping points”—events that no one is sure when or even if they will happen, but suggest that when and if they do come to pass, they will lead to some sort of catastrophe that can’t be recovered from. Of course, global warming will push us closer to reaching these “tipping points.”

President Obama’s advisor on Science and Technology and Director of the Office of Science and Technology Policy, John Holdren, is a fond user of such scare tactics.

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November 5, 2010

Good News for Polar Bears: Goose Eggs on the Menu

Filed under: Adaptation, Animals, Arctic, Polar

Back in May, we reported on the Trumpeter Swan’s recovery from the edge of extinction that was being made a bit easier by a warming Arctic. Now comes word of another Arctic bird that is benefiting from the warming—and at the same time, helping the polar bear cope with climate change.

This time around it is the snow goose—a rather plentiful denizen of the far north.

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March 17, 2010

Problems with the Permafrost?

Filed under: Arctic, Climate Changes

You’ve heard it a thousand times before – greenhouse gases are causing the Earth to warm, there is more warming in the Arctic than other parts of the planet, and the permafrost is melting away. Remind the world that permafrost holds carbon and methane that can be released into the atmosphere, throw in some pictures of a drunken forest (below), claim that the permafrost melting is some type of global warming time bomb, and you will be embraced by the global warming alarmists. Do a web search on the subject of global warming and permafrost melting for 1,000s of additional ideas.


Figure 1. “Drunken forest” undoubtedly caused by widespread melting of the permafrost?

We have covered the permafrost issue before, and over and over, this story seems to be far more complex than one might expect. A recent article in Global Change Biology is yet another addition to the complicated warming = melting of permafrost issue.

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December 21, 2009

A Christmas Story: Some Facts about Greenland

The wonderful Christmas season is upon us, and no Christmas story would be complete without snow. If you really like snow, Greenland is the place for you! The snow there lasts all year long and is 1,000s of feet deep in the interior – a white Christmas is guaranteed every year in this winter paradise.

Anyone following the global warming debate is aware that Greenland is a favorite topic of the apocalypse crowd – melt Greenland, sea level will rise, the ocean currents will be disrupted, and the climate of the world will be changed for thousands of years — all thanks to our inability to slow-down our greenhouse gas emissions. The rhetoric from Copenhagen recently was full of disasters involving rapid melting of Greenland. Within the past week alone, we found the headlines “Warming Hits Greenland’s Hunters” and “The Maldives and Greenland’s Ilulissat: Two Countries Experiencing Global Warming at an Alarming Rate”.

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October 20, 2009

Baffling Island

There is a bit of press covering a just-published paper that concludes that the current climate and ecological conditions in a remote lake along the north shore of Canada’s Baffin Island are unique within the past 200,000 years—and anthropogenic global warming is the root cause. Which of course, spells t-r-o-u-b-l-e.

Somehow, that temperatures there were several degrees higher than present for a good third of the past 10,000 years and that there has been virtually no temperature trend in the area during past 50 years—the time usually associated with the greatest amount of human-caused “global warming”—was conveniently downplayed or ignored.

Go figure.

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January 23, 2009

Glacier Slowdown in Greenland: How Inconvenient

In this week’s Science magazine, science writer Richard Kerr reports on some of the goings-on at this past December’s annual meeting of the American Geophysical Union.

While he didn’t cover our presentation at the meeting in which we described our efforts at creating a reconstruction of ice melt across Greenland dating back into the late 1700s (we found that the greatest period of ice melt occurred in the decades around the 1930s), Kerr did cover some other recent findings concerning the workings of Greenland’s cryosphere in his article titled “Galloping Glaciers of Greenland Have Reined Themselves In.”

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November 14, 2008

Slowdown in Greenland

Filed under: Arctic, Polar, Sea Level Rise

No self-respecting global warming presenter would ever miss the chance to warn the audience that higher temperatures could melt ice in places like Greenland, the melting water could lubricate the interface between ice and rock, and watch-out … the ice could increase its velocity, fall or move quickly into the sea, and cause a rapid rise in sea level. If you happen to be Al Gore, you might show us melting ice, water pouring into some moulin (Figure 1), and then cap it off with an image of water drowning out the World Trade Center Memorial. This story in its near infinite varieties appears on literally thousands of websites dealing with the global warming issue. (more…)




May 16, 2008

Where Are All The Drowning Polar Bears?

Filed under: Adaptation, Animals, Arctic, Polar

The Interior Department just announced its decision to list the polar bear as “threatened” under the U.S Endangered Species Act (ESA). The justification behind the decision is that polar bears are highly dependent on sea ice in the Arctic for their livelihood—hunting, mating, birthing, family rearing, etc.—and thus if sea ice declines, so will the overall health of the species. While this may, in fact, be true in some sense, it also gives short-shrift to the bears adaptive abilities, which must be large, given that they survived the previous interglacial warm period as well as an extended period of warmer-than-present conditions in the Arctic (which undoubtedly were associated with reduced sea ice levels) about 5,000 to 7,000 years ago (give or take a thousand years) (see here fore example). If the bears fare worse this time around, it will mostly likely be because their natural adaptive response may run up against a human roadblock in the form of habitat disruption or other types of difficulties that an increased human presence may pose to the adapting bears. It seems that this is what the intent of the ESA is aimed at tempering, not trying to alter the climate—precisely how the Act should have be applied, despite all the criticism surrounding the decision.

All this renewed attention to polar bears has piqued our interest in just how the bears have been faring recently. Al Gore made movie stars out of drowning bears in his 2006 film An Inconvenient Truth with an animation sequence depicting a small patch of floating ice disintegrating under a struggling polar bear until it was left swimming alone in a vast expanse of open ocean. One couldn’t help to get a little teary-eyed at the notion.

And as the public just can’t get enough of cute, cuddly, slightly aggressive movie stars who are a little down on their luck, the paparazzi are never too far behind to document their each and every move. Pictures of Paris Hilton partaking in every activity imaginable abound and Britney can’t even pull out of a parking lot without running over a photographer’s foot. So where are all the pictures of drowned and drowning polar bears?

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