What happened A United Nations panel of the world’s leading environmental scientists issued its most dire warnings on the dangers posed by climate change, saying global warming is already affecting every continent and threatens to devastate food supplies, cause mass extinctions of plants and animals, worsen droughts, and raise the risk of wars over resources. The longer society holds off […]
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Nature films and science documentaries usually portray Antarctica to be nothing but the most cold, isolated, almost anti-social continent on earth — at least if you’re not a penguin — but life at McMurdo Station disproves that. The 2011-2012 Antarctic southern summer season is now alive and kicking (after numerous delays), and “Mac Town” (as the residents of McMurdo call […]
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CAPE LEGOUPIL, ANTARCTICA: From the ground in this extreme northern part of Antarctica, spectacularly white and blinding ice seems to extend forever. What can’t be seen is the battle raging thousands of feet below to re-shape Earth. Water is eating away at the Antarctic ice, melting it where it hits the oceans. As the ice sheets slowly thaw, water pours […]
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Mysterious plumes of gas rising more than 150 miles above the surface of Mars have left scientists confounded. On two occasions in the spring of 2012, amateur astronomers spotted a cloud developing on the surface of the Red Planet. The plumes, which spanned about 600 miles in diameter and changed shape constantly, appeared within a few hours and remained […]
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Some new thinking may have brought astronomers a step closer to solving the mystery of how our moon formed. Researchers have long believed that the moon was cleaved from a Mars-sized planet that collided with Earth some 4.5 billion years ago. Yet recent tests of lunar rock samples suggest that the moon’s chemical makeup is too similar to Earth’s to […]
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More than 850 million people around the world—one in nearly seven—don’t have enough to eat. Although current global food production is sufficient to feed everyone, the number eating less than the minimum the human body needs—an average 2,100 calories a day for adults—now grows by more than ten million a year, mostly in the poorest nations. Countries with unstable food […]
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The North Atlantic Ocean is responding rapidly to climate change: it has absorbed 50% more carbon from human activities in the last 10 years,than in the previous decade, a new study shows. In effect, it has become both a sink for the byproduct of the fossil fuel combustion that is driving global warming, and at the same time an index of the […]
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Saturn’s ice-covered moon Enceladus could harbor a warm-water ocean beneath its frozen surface, opening up new possibilities for life beyond Earth. Enceladus has fascinated astronomers since 2005, when NASA’s Cassini probe caught geysers on the moon’s south pole spewing out plumes of salty water. Water that is thought to have originated in an ocean buried beneath the moon’s 25-mile-thick ice […]
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The planet’s inexorable warming means there will be no new ice age for at least the next 100,000 years, scientists say. Human beings have not just started to leave a unique geological stratum that will announce their existence long after the species has been extinguished. They may have altered a climate cycle that has been stable for millions of years and even […]
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Scientists in the US who have been checking on the health of the Arctic over the last year are worried by what they’ve learned: it’s warmer, has less ice, and some of its animals and fish are facing new stresses. And in a surprise finding , which they cannot yet explain, the scientists discovered that green vegetation over much of […]
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