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Arctic Nearly Free of Summer Sea Ice During First Half of 21st Century, Experts Predict
April 12, 2013 — For scientists studying summer sea ice in the Arctic, it's not a question of "if" there will be nearly ice-free summers, but "when." And two scientists say that "when" is sooner than many thought -- ... > full story -
Scientists Map Elusive 3-D Structure of Telomerase Enzyme, Key Actor in Cancer, Aging
April 12, 2013 — Like finally seeing the gears of a watch and how they work together, all components of an entire telomerase enzyme complex have been positioned into a three-dimensional structure for the first time. ... > full story -
Secrets of Bacterial Slime Revealed
April 12, 2013 — Scientists have revealed the mechanism that causes a slime to form, making bacteria hard to shift and resistant to ... > full story -
Alternative Way to Explain Life's Complexity Proposed
April 12, 2013 — Evolution skeptics argue that some biological structures, like the eye, are too complex for natural selection to explain. Biologists have proposed various ways that so-called "irreducibly complex" ... > full story -
Disappearing Nannies Force Parents to Accept Their Duties
April 12, 2013 — Large helpers (nannies) in a cichlid fish allow the dominant male and female to reduce their personal contribution to their offspring and territory, according to new ... > full story -
Carbon Dioxide Removal Can Lower Costs of Climate Protection
April 12, 2013 — Directly removing carbon dioxide from the air has the potential to alter the costs of climate change mitigation. It could allow prolonging greenhouse-gas emissions from sectors like transport that ... > full story -
Maya Long Count Calendar Calibrated to Modern European Calendar Using Carbon-14 Dating
April 11, 2013 — The Maya are famous for their complex, intertwined calendric systems, and now one calendar, the Maya Long Count, is empirically calibrated to the modern European calendar, according to an ... > full story -
Warmest Summers in Last Two Decades in Northern Latitudes Were Unprecedented in Six Centuries
April 11, 2013 — Through developing a statistical model of Arctic temperature and how it relates to instrumental and proxy records derived from trees, ice cores, and lake sediments, scientists have shown that the ... > full story -
New Technique Measures Evaporation Globally
April 11, 2013 — Researchers have developed the first method to map evaporation globally using weather stations, which will help scientists evaluate water resource management, assess recent trends of evaporation ... > full story -
Sea Mammals Find U.S. Safe Harbor
April 11, 2013 — New research shows that many US marine mammal populations -- especially some seals and sea lions -- have rebounded since 1972, because of the Marine Mammal Protection ... > full story
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