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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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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New research suggests that high levels of BPA, a chemical in many plastics and canned food linings, might raise the risk of miscarriage in women prone to that problem or having trouble getting pregnant. While the study is not nearly enough to prove a link, experts say it does add to “the biological plausibility” that BPA might affect fertility and […]
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Smokers or those who are exposed to secondhand smoke may require heavier doses of anesthesia and painkillers during surgery. A new study found that cigarettes—which are filled with more than 4,000 chemicals—can not only affect the metabolism of anesthetic drugs in the liver but may also influence nerve cells involved in the sensation of pain. Among 90 women who underwent […]
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There is little dispute that in the wake of European colonists’ arrival in the New World, Native American populations were decimated by disease and conflict. But when it comes to the timing, magnitude, and effects of this Native American depopulation — it depends on who you ask. Many scholars claim that disease struck the native population shortly after their first […]
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Here’s a novel idea for putting the brakes on global warming: Ask everyone in the world to paint their roofs white. U.S. Energy Secretary Steven Chu raised the idea last week at a conference in London, noting that the proposal, first put forth by researchers at Lawrence Berkeley National Laboratory in California, would reflect enormous amounts of sunlight off the […]
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There is a deafening and horrific silence in the USA about the problem of gun control, Piers Morgan told the Today program, responding to US radio host Alex Jones’ defence of guns. “The product of this demented attitude is you have the worst gun crime of any of the advanced countries in the world,” said the British journalist. Mr Morgan […]
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10 myths about global warming, and what the science really says. THE REASONS FOR raising doubts about the human causes of global warming, explains Skeptical Sciences John Cook, are often political rather than scientific. Cook hears from climate change skeptics that ‘“its all a liberal plot to spread socialism and destroy capitalism. However, what is causing global warming is a […]
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Juba, South Sudan Army rapes, murders: South Sudanese soldiers have been gang raping young girls and then burning them alive, according to a new United Nations report. The army is trying to terrify the entire civilian population into fleeing rebel-held areas so that the rebels will have no support base. One survivor described how he hid in a river when […]
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Polar bear numbers are expanding The Effects of Global Warming on Polar Bears has been quite significant. “A main Canadian power on polar bears, Mitch Taylor, said: ‘We’re seeing an increment in bears that is truly phenomenal, and in spots where we’re seeing an abatement in the populace it’s from chasing, not from environmental change.’” (Scotsman.com) Polar bears are found […]
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