지구 온난화로 변화하는 북극의 생태계

 

This is where the midnight summer sun kisses the horizon 수평선 and never sets. The land of 24-hour daylight 일광, 낮 is home to some of the world’s most beautiful and most endangered 멸종될 위기에 처한 environments. What you might expect to see and what you might not. That’s a muskox, a curious animal you’ll only find here.

 

It’s scenery 풍경 like this that continues to astonish 깜짝 놀라게 하다 Arctic veterans like Canadian Coast Guard Officer Brian Gibbons who’s been coming up here for 23 years. But there’s something else he’s not seeing… ice. What Gibbons sees from sea level is even clearer from space. This was Arctic sea ice in 1979. Here it is in 2005. This summer, scientists saw the most rapid reduction in sea ice in nearly 30 years.

 

Troubling observations 관찰, 관측 like these brought together an international team to find out how dramatic changes here affect our global climate. They’re making their way through the Arctic Ocean, a body of water larger than the United States, traveling aboard the Canadian ice breaker 쇄빙선 Louis St. Laurent because while there’s less ice, it’s far from gone. “Things are happening really rapidly in the Arctic.”

 

We saw temperatures averaging close to 40 degrees. And while glaciers 빙하 like this one melt and freeze annually, a recent study found they’re getting thinner and pouring more water into our oceans. This may look like a river, but it’s run-off 유출액체, 유거수 from the glacier. And even a few inches added to the world sea level could affect millions of people who live along coast lines.

 

“Climate change is something you can bank on.” The question for oceanographer 해양학자 Eddie Carmac is how much the warming trend is being accelerated 가속화하다 by humans and how much is part of a natural cycle. “If we had been here, in the same spot, 10,000 years ago, we wouldn’t be standing on sea ice, we’d probably be on a glacier. If we went back 120,000 years, we might be treading water.” Daniel Seaburg, CBS News, off the coast of Devon Island, the Arctic.

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