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NASA's RapidScat instrument provided measurements of sustained wind speeds as Tropical Storm Conson continued tracking north through the northwestern Pacific Ocean.
When RapidScat passed over Conson on Aug. 10, it was near peak intensity. RapidScat measured maximum sustained winds around the center of circulation as fast as 49 mph (22 meters per second/79 kph) on Aug. 10. The RapidScat instrument that flies aboard the International Space Station measures Earth's ocean surface wind speed and direction over open waters.
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The U.S. Fish and Wildlife Service today announced the successful recovery of three out of four unique subspecies ofisland fox on San Miguel, Santa Rosa and Santa Cruz islands, removing them from the endangered species list. The agency also upgraded the protection status of the Santa Catalina Island fox — the fourth subspecies — from “endangered” to “threatened” to reflect its status improvement.
"Because they evolved separately on the islands for 16,000 years, these adorable little foxes are some of the only carnivores endemic to California,” said Jeff Miller with the Center. “They were on the brink of extinction just 12 years ago when they were protected under the Endangered Species Act. Now, thanks to successful reintroduction and recovery efforts, numbers of foxes are way up and threats have been reduced."
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Fatty acids found on the surface of water droplets react with sunlight to form organic molecules, a new study reports, essentially uncovering a previously unknown form of photolysis.
The results could affect models that account for aerosol particles, including models related to climate. Conventional wisdom holds that carboxylic acids and saturated fatty acids, which are abundant throughout the environment, only react with hydroxyl radicals and are not affected by sunlight.
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Plant scientists at the University of Cambridge have found that the cucumber mosaic virus (CMV) alters gene expression in the tomato plants it infects, causing changes to air-borne chemicals - the scent - emitted by the plants. Bees can smell these subtle changes, and glasshouse experiments have shown that bumblebees prefer infected plants over healthy ones.
Scientists say that by indirectly manipulating bee behaviour to improve pollination of infected plants by changing their scent, the virus is effectively paying its host back. This may also benefit the virus: helping to spread the pollen of plants susceptible to infection and, in doing so, inhibiting the chance of virus-resistant plant strains emerging.
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The National Marine Fisheries Service issued regulations today prohibiting seafood imports from nations whose fisheries kill more whales and dolphins than U.S. standards allow. Each year around 650,000 whales, dolphins and other marine mammals are unintentionally caught and killed in fishing gear worldwide. Under the new rule, foreign fishermen must meet the same marine mammal protection standards applied to U.S. fishermen or their fish will be banned from the lucrative American seafood market. The rule is the result of a settlement in a lawsuit brought by conservation groups two years ago.
“The new regulations will force countries to meet U.S. conservation standards if they want access to the U.S. market, saving thousands of whales and dolphins from dying on hooks and in fishing nets around the world,” said Sarah Uhlemann, international program director at the Center for Biological Diversity. “The U.S. government has finally recognized that all seafood consumed in the United States must be ‘dolphin-safe.’”
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A team of researchers at MIT has developed a new way of making windows that can switch from transparent to opaque, potentially saving energy by blocking sunlight on hot days and thus reducing air-conditioning costs. While other systems for causing glass to darken do exist, the new method offers significant advantages by combining rapid response times and low power needs.
Once the glass is switched from clear to dark, or vice versa, the new system requires little to no power to maintain its new state; unlike other materials, it only needs electricity when it's time to switch back again.
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Ocean noise caused by shipping can cause humpback whales to dive more slowly and forage less frequently, according to new research in the journal Biology Letters. A team of U.S. and U.K. researchers tagged 10 humpbacks in Stellwagen Bank National Marine Sanctuary, off the coast of Massachusetts, with devices that simultaneously tracked the whales’ movements and underwater noise.
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A study shows that weather patterns tied to climate change may increase the severity of algal blooms in Chesapeake Bay as extreme rainfall cycles flush larger amounts of nitrogen from fertilizer and other sources into the Susquehanna River. The researchers found that a spike in rainfall can increase nitrogen levels in the bay even if the amount of fertilizer used on land remains the same, leading to explosive algae growth that poisons humans and wildlife, and devastates fisheries.
While efforts to restore the bay have been successful during the past several years, a study led by Princeton University researchers shows that weather patterns tied to climate change may nonetheless increase the severity of algal blooms by changing how soil nutrients leach into the watershed.
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Until now estimates of how much of ice-free rock is exposed in Antarctica were stated as ‘less than 1%’.
For the first time scientists from British Antarctic Survey (BAS) have been able to produce accurate quantification of how much of the continent isn’t buried under snow. At a mere 0.18% scientists can now say confidently how much of the frozen continent really is frozen. This improves the baseline that scientists use to monitor the effects of climate change in the region.
Publishing this month in the journal Cryosphere scientists describe how they used the latest NASA and USGS satellite data to produce an automated map of rock outcrop across the entire Antarctic continent.
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Scientists have discovered a new species of colorful songbird in the Galápagos Islands, with one catch: it's extinct. Researchers from the California Academy of Sciences, San Francisco State University (SFSU), the University of New Mexico (UNM), and the San Francisco Bay Bird Observatory (SFBBO) used molecular data from samples of museum specimens to determine that two subspecies of Vermilion Flycatchers, both found only in the Galápagos, should be elevated from subspecies to full species status. One of these newly recognized species--the characteristically smaller San Cristóbal Island Vermilion Flycatcher--hasn't been seen since 1987 and is considered to be the first modern extinction of a Galápagos bird species. The findings were published online earlier this May in the journal Molecular Phylogenetics and Evolution.
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