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Contents
- Sweet Confusion: Does high fructose corn syrup deserve such a bad rap?
- Closed Thinking: Without scientific competition and open debate, much psychology research goes nowhere
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Read articles, including Science News stories written for ages 9-14, on the
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Contents
- Teens take home science gold: A low-cost, self-driving vehicle; battery alternatives and analyses of galaxy clusters claim top prizes at a global high school science competition
- Flagging loose bolts: “Smart alert washer” automatically flags when a nut is coming loose, warning of potential danger
- Pee is for power: The water in urine can be a source of hydrogen for electrical generators
Climate Change
- Whether crop-based biofuels will reduce greenhouse gas emissions depends on how, and where, they're grown.
- Smoke from forest fires, agricultural burning may be substantial part of springtime plumes.
- More than 170 common North American species are wintering farther north than they did in the past.
- Tropical glaciers are vanishing at an especially rapid pace—and taking valuable climate records with them.
- Unexpected rates of warming threaten to change Antarctica and pose a threat to the survival of some of its penguins.
- Satellite data reveal more thunderheads forming as tropical sea-surface temperatures rise.
- Warmer winter temperatures are altering the snowpack, squelching the rodents’ population booms.
- Myth often cited by global warming skeptics debunked.
- Unusual data let scientists test predictions that global warming drives species up slopes.
- An abnormally hot year can significantly suppress growth in grasslands, a stifling effect that lingers well into the next year even if temperatures return to normal. It can also hinder how well the grasslands absorb carbon dioxide from the atmosphere.
- The number of coastal areas known as dead zones is on the rise. A new tally reports more than 400 of the oxygen starved regions worldwide.
- Climate simulations are underestimating how often intense rainstorms occur at warm temperatures, a hint that episodes of extremely strong precipitation and flooding will strike more often as the global average temperature rises.
- Hydrogen fuel cells can eventually replace the combustion engine, but meanwhile a wider range of technologies will be needed to reduce carbon emissions.
- Global warming may turn out to be more than just a pain in the neck: Rising average temperatures could trigger an increased prevalence of kidney stones.
- The Arctic tundra is under assault from trees, with serious implications for global climate change.
- Past abrupt climate change in the North Atlantic could have started as far south as China, scientists say.
- Leaves mostly keep their cool (or warmth) wherever they live, a finding that might affect reconstructions of past climates.
- Long-delayed U.S. government summary of climate change science sees effects on energy, transportation, farming, and water.
- Upwelling off Californian coast offers taste of predicted ocean acidification.
- As forests move northward and to higher elevations, they alter ecosystems and threaten to further heat the Arctic's already warming climate.
- Polar bear declared "threatened," but Secretary limits decision's impact.
- A kilometers-long ice core from Antarctica has been recording climate information for the past 800,000 years and has revealed a three millennia–long period when carbon dioxide levels in the air were lower than any previously measured.
- Monster data crunch strengthens case that climate is disrupted.
- The Sahara, one of the hottest and driest regions on Earth, gradually became arid over a period of centuries, a finding that contradicts many previous studies.
- In lab simulations of future ocean conditions, brittle stars grow extra-calcified but puny arms.
- Insects and other animals that regulate their body temperature externally may be especially vulnerable as the world warms.
- What's behind global warming—and is there anything we can do?
- A new data-rich climate model foresees a short-term reprieve from warming for parts of western Europe and North America.
- From glaciers to sea ice, the big melt is on.
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Eruption early in human prehistory may have been more whimper than bang
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Greed may breed financial fitness, but evolution allows unselfishness to survive
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Fine-tuning of technique used in other animals could enable personalized medicine
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Simulation suggests long-term effect on sea level not as dire as some predictions
Not to miss
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Coverage of the 2013 American Association for the Advancement of Science meeting
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The Year in Science 2012
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Three-part series on the scientific struggle to explain the conscious self
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Tables of contents, columns and FAQs on SN Prime for iPad
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