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Climate Change Panel Says Expect More Extreme Weather
Extreme weather cut a swath across the world in 2011. For Bill Wing, it began a year ago on New Year’s Day as he surveyed the damage from a tornado1 that touched down in Cincinnati, Arkansas.
“It sounded like a freight train coming," said Wing. "You could feel the wind was moving and the shaking, more like an earthquake for us.”
That tornado was among 1600 that crisscrossed the United States last year. That same pattern of extreme weather was experienced across the globe. In Thailand, rainfall was 80 percent more than the seasonal2 average and the capital city was deluged3. The year before, Russia experienced its hottest summer in 500 years.
“It’s very clear that heat waves are on the increase both in terms of numbers and duration," said Rajendra Pachauri. "Another important finding is the fact that extreme precipitation events are on the increase.”
IPCC Chairman Rajendra Pachauri says the panel’s report strongly suggests that this trend will continue as temperatures rise.
“And, in fact, if you make projections4 for the future, you’ll find that in the case of heat waves, those heat waves which are currently taking place once in 20 years will by the end of the century take place once in two years," he said.
While no evidence connects global warming with specific local weather events, Chairman Pachauri says warmer temperatures, boosted by CO2 and other gas emissions5 from the burning of fossil fuels, will trigger more intense droughts, heavier rainfall and stronger storms.
“Basically we have to stabilize6 the concentration of these greenhouse gases, which includes carbon dioxide as the most dominant7 gas in the atmosphere, such that, we can stabilize the climate of this planet and thereby8 minimize or delay or avoid some of the worst impacts that are going to take place in the future," said Pachauri.
Extreme weather disasters are costly9, on average $80 billion a year. While the IPCC study makes clear that no country is immune, Pachauri notes that poorer nations will pay a higher price - in dollars and deaths - because they are least able to respond. He adds, the options are clear:
“We need to adapt to the impacts of climate change, in particular, extreme events and disasters related to climate change," he said. "And, we will have to mitigate10, because it is also very clear that there are certain thresholds and points both in social as well as in natural systems where the resilience of societies will be exceeded in such a way that there will be a severe challenge in terms of adaptation. So, we have to mitigate.”
The 594-page IPCC report is the work of 220 authors from 62 countries. It cites thousands of scientific studies. Enough is known, the editors say, to make good decisions about how to manage risks of climate-related disasters.
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1 tornado | |
n.飓风,龙卷风 | |
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2 seasonal | |
adj.季节的,季节性的 | |
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3 deluged | |
v.使淹没( deluge的过去式和过去分词 );淹没;被洪水般涌来的事物所淹没;穷于应付 | |
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4 projections | |
预测( projection的名词复数 ); 投影; 投掷; 突起物 | |
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5 emissions | |
排放物( emission的名词复数 ); 散发物(尤指气体) | |
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6 stabilize | |
vt.(使)稳定,使稳固,使稳定平衡;vi.稳定 | |
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7 dominant | |
adj.支配的,统治的;占优势的;显性的;n.主因,要素,主要的人(或物);显性基因 | |
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8 thereby | |
adv.因此,从而 | |
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9 costly | |
adj.昂贵的,价值高的,豪华的 | |
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10 mitigate | |
vt.(使)减轻,(使)缓和 | |
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