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(单词翻译:双击或拖选)
2-337522
21 January 2007
As Indonesia copes with one of its driest rainy seasons on record, a climate change study indicates global warming will lead to prolonged and more severe droughts in Indonesia and Australia in the future. Chad Bouchard reports from Jakarta.
A farmer carries buckets of water collected from a drying pond in Rembang, Central Java, Indonesia
Climate experts say new evidence suggests Indonesia's seasonal1 rains will diminish as global temperatures continue to rise.
That could mean a devastating2 blow to the country's tropical agriculture and spark more haze-producing wildfires each year.
A new study used samples of coral to track rainfall patterns from more than 6,000 years ago. The study was published a few days ago in the journal Nature.
Study co-author Nerilie Abram says the new data suggest an unexpected link between monsoons4 and droughts in countries surrounding the Indian Ocean.
"And so the implication is that with monsoon3 strengthening we expect that parts of Asia and India, where you receive monsoon rainfall, are likely to get wetter. But the knock-on effect is that parts of Indonesia and Australia are likely to get dryer," said Abram.
This year's drought in Indonesia is caused partly by a natural cycle of cooling in the Indian Ocean much like the El Nino phenomenon in the Pacific Ocean.
But droughts or heavy rainfalls generated by that warming cycle will increase if average global temperatures continue to rise. Many scientists think global warming may be caused in part by increasing emissions5 of gases from burning fuels such as oil and coal. They recommend cutting those emissions to halt the rise in temperatures.
Abram is a paleoclimatologist who works with the British Antarctic Survey at Cambridge, in the United Kingdom. In a phone call from Cambridge, she said recently that the coral study shows droughts also are shifting to a different time of year.
"And that the peak of drought could actually shift so that it falls at the time of year when this area receives its most rainfall," added Abram. "So that sort of change could have quite a critical effect on agriculture in the area, and actually change the way that we need to try and adapt to these events."
Millions of impoverished6 Indonesians in rural areas depend on subsistence agriculture, which could be harmed by drier weather.
In the past several months, the severe drought was blamed for massive forest fires in Indonesia, which caused thick smog and health problems in neighboring countries.
1 seasonal | |
adj.季节的,季节性的 | |
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2 devastating | |
adj.毁灭性的,令人震惊的,强有力的 | |
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3 monsoon | |
n.季雨,季风,大雨 | |
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4 monsoons | |
n.(南亚、尤指印度洋的)季风( monsoon的名词复数 );(与季风相伴的)雨季;(南亚地区的)雨季 | |
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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 impoverished | |
adj.穷困的,无力的,用尽了的v.使(某人)贫穷( impoverish的过去式和过去分词 );使(某物)贫瘠或恶化 | |
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