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发表于 2016-5-16 20:43
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[Homework]CNN 2016-05-16
First up, Cambodia, Laos, Singapore, Thailand, these are some of the countries in Southeast Asia that are suffering under a heatwave and a dangerous drought. Temperatures are rising, over 112 degrees Fahrenheit in some places. That's setting records. In Malaysia, schools are closing and animals are dying. Wells and lakes are drying up. Vegetables are withering. Same story for crops in Vietnam with the Mekong River at record low level and the Indian government says 330 million people, more than to the entire population of the US have been affected by drought. So, what's causing all of this? Scientists said the blame rest of El Nino. We've talked about the natural climate cycle a lot since last year. When it started disturbing normal US weather pattern, this El Nino is tied for the strongest one on record and even it weakens and approaches its end, it's still affecting weather worldwide.
We heard someone talk about El Nino but what it is? In fact, it's a weather phenomenon that happens between Pacific Ocean and the atmosphere. It can have influence on the temperature and weather all over the world. In the spring time, the trade winds start to relax and in normal year, they come back during the Asian monsoon and the summer. During the El Nino year, they don't. In fact, some year, the trade winds can even reverse. That has a huge impact on the Pacific Ocean. During a normal year, warm water is pulled on the west side of the ocean. Cooler water is on the east side. That results in cooler water off the coast of California and warmer water in the western Pacific. During an El Nino year, that th. till goes away and so, warm water is still all the way over to the east side of the Pacific. It increase conventions and also brings thunderstorms to the coast of California and droughts to the western side of the Pacific. We all know that the En Nino will impact the world. The only question is how will it affect you?
Yesterday, a group of night climbers reached the summit of Mount Everest. More than 4,000 people have done that in history but this is the first time in over 2 years that anyone has made it to the top. Why? Because in 2014 and 2015, deadly avalanches, one of them, the result of the earthquake in Nepal brought a tragic end to the climbing season. The weather on the Everest is generally unpredictable but so far this year, it's reportedly being very pretty good. Still, climbing the mountain is incredibly dangerous, exhausting and expensive. It can cost anywhere from 35000 dollars to 100000 once you factor in the permit, the Shepars who will assist you and the supplies. Yeah, there's no shortage of people who are willing to try each year. And by the numbers look now at the tallest mountain on the planet, Everest rises more than 29000 feet into the sky. To put that into perspective, imagine stacking 20 Empire State Building on top of each other. The first people that summit to the mountain, T. and Sir Hillary, who reached the top back into 1953. The record for most climbs to the summit, Apa Shepar, who's made his 21 times and Y. at age 80 become the oldest person ever to climb Everest. And another proof that age is just a number. Jordan R. at age 13, he's the youngest person to reach the summit. But the danger remains. More than 225 people have lost their lives trying to climb the mountain.
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