There’s no question that our species has had a dramatic impact on the planet’s physical environment, particularly over the last few centuries, with the rise of modern industry, transportation, and infrastructure. But as new research shows, humans have been transforming the landscape, with lasting impacts, since long before the start of the Industrial Era. Scientists from MIT and the University […]
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In its early days, Earth became hell. About 3.3 billion years ago, new research indicates, at least two massive asteroids 30 to 60 miles in diameter smashed into this planet, boiling the oceans and sending atmospheric temperatures soaring to an unimaginable 932 degrees Fahrenheit. Stanford University scientists have found evidence of this extreme era in a geological formation in South […]
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Why do chimpanzees kill one another? For years, many studies have shown that chimps that were observed killing one another had become more aggressive only when humans encroached on their environment. But new studies have lent weight to an alternative theory: Chimpanzees are, like humans, natural-born killers who use violence as a means of expanding their territory and increasing their […]
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Ocean temperatures first collected during one of the great 19th-century voyages of exploration confirm one of the consequences of climate change: humans have managed to warm even the deepest parts of the ocean. A new study in Nature Climate Change calculates that the amount of heat absorbed by the ocean has doubled in the last 18 years. A third of […]
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According to a new study by Nasa, Antarctica’s Larsen B ice-shelf is on course to completely disintegrate within the next five years. Studies show that the 10,000-year-old ice shelf, after partially collapsing in 2002, is “quickly weakening.” “These are warning signs that the remnant is disintegrating,” said Ala Khazendar of Nasa’s Jet Propulsion Laboratory (JPL) in Pasadena, California. “Although it’s […]
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“Colony collapse disorder” the mysterious, decade-long die-off among honeybees, is getting worse. A survey of about 5,000 beekeepers in the U.S. has found that they’ve lost about 42 percent of their colonies over just the past year. Even more alarming is the fact that honeybee deaths spiked in the summer, when bees are usually healthiest. “What we’re seeing with this […]
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“It has happened,” said Philip Bump. For the first time in human history, atmospheric carbon dioxide levels hit a daily average of 400 parts per million (ppm) last week. “There is now more carbon dioxide in the atmosphere than at any point since 3 million years ago.” Back then, global temperatures were about 7 degrees higher, the Arctic was ice-free, […]
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In America, 7 out of 10 people are on Welfare. That’s the percentage of people who receive more in gov’t benefits than they pay in taxes, according to a new Tax Foundation study. Some of these beneficiaries of Uncle Sam’s handouts are the poor; another new study, by the Cato Foundation, found that families collecting various welfare benefits, including food […]
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An expedition team in Antarctica has successfully cleared away layers of thick ice from inside the hut of the famous Australian explorer Sir Douglas Mawson, revealing a century-old frozen bowl of peas, books on the shelves, candles, matches and “old-style woolen underwear”. The team used picks and chainsaws to remove the ice that had filled the main living quarters used […]
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Residents of rich countries are more likely to be affected by depression than those who live in poorer nations. That’s the startling conclusion World Health Organization researchers reached when they interviewed nearly 90,000 people in 18 countries about their mental health. France and the U.S. were the most depressed; 21 percent of French people and more than 19 percent […]
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