Tusks from more than 6,000 illegally killed elephants will be burned in Kenya on Saturday, the biggest ever destruction of an ivory stockpile and the most striking symbol yet of the plight of one of nature’s last great beasts. The ceremonial burning in Nairobi national park at noon will be attended by Kenya’s president, Uhuru Kenyatta, heads […]
Apr 30 2016 | Posted in
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Ninety-seven percent of all modern diesel cars emit more toxic nitrogen oxide (NOx) pollution on the road than the official limit, according to the most comprehensive set of data yet published, with a quarter producing at least six times more than the limit. Surprisingly, the tiny number of models that did not exceed the standard were mostly […]
Apr 25 2016 | Posted in
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যুক্তরাষ্ট্রের কলাম্বিয়া বিশ্ববিদ্যালয়ের সঙ্গে যৌথ গবেষণার জন্য ঢাকা বিশ্ববিদ্যালয়ে প্রতিষ্ঠা হয়েছে আর্থ অবজারভেটরি। ভূমিকম্পের প্রবণতা নিয়ে ২০০৩ সাল থেকে গবেষণা করছেন অধ্যাপক হুমায়ুন আখতার। তার গবেষণা মডেল বলছে ইন্ডিয়ান, ইউরেশিয়ান এবং বার্মা তিনটি গতিশীল প্লেটের সংযোগস্থলে বাংলাদেশের অবস্থান। তিনি জানান, বাংলাদেশের দুই দিকের ভূ-গঠনে শক্তিশালী ভূমিকম্পের শক্তি জমা হয়েছে।“একটা হচ্ছে উত্তরপূর্ব কোনে সিলেট অঞ্চলে ডাউকি […]
Bottled water is poised to become the king of beverages in the United States. Despite the fact that more than a dozen colleges have banned sale of bottled water at campus dining facilities, that sales of bottled water are banned at 22 U.S. national parks—including the Grand Canyon and Zion—and that half a dozen cities have banned […]
Apr 21 2016 | Posted in
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Three decades later, it’s not certain how radiation is affecting wildlife—but it’s clear that animals abound. Marina Shkvyria watches for animal tracks as she walks toward an abandoned village in the Chernobyl Exclusion Zone, the area sealed to the public after a nuclear power plant exploded here 30 years ago, on April 26, 1986. Spotting one, […]
Apr 19 2016 | Posted in
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Soil is the world's largest terrestrial carbon pool. In northern hardwood forests in the United States, mineral soil pools store up to 50 percent of total ecosystem carbon. Logging and other land-use changes are a major cause of soil carbon release, but there has been recent interest to further understand soil carbon dynamics in forested […]
Apr 17 2016 | Posted in
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Greenland's massive ice sheet has experienced such an early and extensive melt that scientists this week thought their models were broken when they saw the data. Summer-like warm temperatures and rain resulted in about 12 percent of the ice sheet surface area – 1.7 million square kilometres – showing signs of melting ice on Monday, scientists […]
Apr 16 2016 | Posted in
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The soldiers at Matienzo Base in Antarctica made an odd discovery in January 1995—an antique dog sled, unlike any they had ever seen, bound together by leather straps, with a label reading “Made in England.” Matienzo was an Argentine research base on a small island 30 miles off the coast of the Antarctic Peninsula. It […]
Apr 13 2016 | Posted in
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Before the arrival of humans—and the rats, cats, and other predators that we brought—New Zealand was an idyllic haven for birds. Without ground-dwelling mammalian hunters to bother them, many of the local species lost the ability to fly. There’s the kakapo, a giant, booming parrot with an owl-like countenance; the takahe, weka, and other flightless relatives of coots […]
Apr 12 2016 | Posted in
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Global warming is shifting the way the Earth wobbles on its polar axis, a new NASA study says, highlighting what one expert said is the "large" impact humans have on the planet. According to the study published on Friday in the journal Science Advances, melting ice sheets – especially in Greenland – are changing […]
Apr 11 2016 | Posted in
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