Far North Science

News, research and natural acts from Alaska

June 5th, 2007
Updated June 8, 2007 @ 9:10 am

Wild city: munching baby moose

brownbearcloseup.jpg
What’s in your backyard?
Credit: FWS / Image Library

It’s a startling story. Last week, a brown bear took down moose calves and consumed them in full view of a suburban neighborhood on the Anchorage Hillside. A National Geographic film crew even got to snatch images from the comfort of a deck, while sipping lattes and snacking on sushi.

Check out the gripping Anchorage Daily News story, written by outdoor editor Craig Medred and reporter Leslie Anne Jones for details:

Jim Raffuse awoke Wednesday night to what he thought was a child’s scream. He and his wife, Gabrielle, checked out the scene from their deck. A cow moose dashed back and forth. The couple heard the telltale snorts and grumbles of a bear. They feared for the two calves born near their home less than two weeks before.

“We heard the bear snorting,” Gabrielle Raffuse said. “We knew what was going on.”

The grizzly emerged from the brush, dragging the baby moose carcass onto their lawn. For much of the night, the Raffuses’ son, Nicholas, stationed himself on the second-story deck to look out for an elderly neighbor with a habit of walking his dog at odd hours. Fish and Game showed up at 4:30 a.m. to haul away the dead calf.

The next morning, a crew from National Geographic knocked on the door, wanting to know if they could film from the deck. … The grizzly reappeared in the afternoon and this time with the body of the second calf which it had left buried behind a shed near the house. The bear dragged what was left of the calf toward the street and finished its meal in full view of the neighborhood.

June 5th, 2007

Climate reaching ‘tipping point’

Antarctic ice sheet
Antarctica lost much more ice to the sea
than it gained from snowfall according to
a NASA survey done between 1992 and 2002.
Credit: NASA/SVS

The rise of human-produced greenhouse gases has now pushed the Earth’s climate to the brink of “critical tipping points” that could endanger the planet with runaway meltdown, sea level rise and widespread warming.

Want to feel a chill up your spine? The West Antarctic ice sheet may be about to fall apart, and the Arctic ice cap is on the brink of summer shrinkage.

A new analysis of climate models, satellite data, and paleoclimate records looked at these important ice habitats — essential to regulating the Earth’s climate — and concluded that continued warming had pushed them to a point where they could simply disintegrate.

“If global emissions of carbon dioxide continue to rise at the rate of the past decade, this research shows that there will be disastrous effects, including increasingly rapid sea level rise, increased frequency of droughts and floods, and increased stress on wildlife and plants due to rapidly shifting climate zones,” says lead author James Hansen, NASA Goddard Institute for Space Studies in New York.

Time is running out for people to reduce emissions of carbon dioxide and methane.

Read on » » » »

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