Scientists deployed from a research vessel get close to the ice in Antarctica. This kind of observing, Rutgers’ Oscar Schofield writes, is not enough to keep up with the pace of climate change in Antarctica. (Credit: Image courtesy of Rutgers University)
ScienceDaily (June 22, 2010) — Rutgers’ Oscar Schofield and five colleagues from other institutions have published in Science, calling for expanded ocean-observing in the Antarctic, particularly in the Western Antarctic Peninsula, or WAP.
ScienceDaily (June 21, 2010) — Scientists have found that the ocean temperature at Earth’s polar extremes has a significant impact thousands of miles away at the equator.
Scott C. Doney was co-chief scientist on an expedition in the South Atlantic on the NOAA ship Ronald H. Brown. He led a team trying to quantify the ocean uptake of anthropogenic CO2. (Credit: Photo by John Bullister, NOAA/PMEL)
ScienceDaily (June 21, 2010) — Numerous studies are documenting the growing effects of climate change, carbon dioxide, pollution and other human-related phenomena on the world’s oceans. But most of those have studied single, isolated sources of pollution and other influences.
ScienceDaily (June 21, 2010) — Conservation efforts aimed at protecting endangered Caribbean corals may be overlooking regions where corals are best equipped to evolve in response to global warming and other climate challenges.
Scientists reveal the growing atmospheric concentrations of man-made greenhouse gases are driving irreversible and dramatic changes to the way the ocean functions, with potentially dire impacts for hundreds of millions of people across the planet. (Credit: Image courtesy of Global Change Institute)
ScienceDaily (June 19, 2010) — The first comprehensive synthesis on the effects of climate change on the world’s oceans has found they are now changing at a rate not seen for several million years.
Patterns of antibiotic-resistant bacteria in sharks captured in waters off Belize, Florida, Louisiana and Massachusetts. Nurse sharks in Belize and in the Florida Keys hosted the greatest number and diversity of drug-resistant bacteria. (Credit: Graphic produced by Diana Yates. Photo credits: Bull shark (NSW Department of Primary Industries); Lemon shark (drawing by Robbie Cada); Nurse shark (modified from photo by Joseph Thomas); Spinner shark (image by Dieno); Blacktip shark (modified from photo by Albert Kok); Smooth dogfish (image from U.S. Fish & Wildlife Service).)
ScienceDaily (June 18, 2010) — Researchers have found antibiotic-resistant bacteria in seven species of sharks and redfish captured in waters off Belize, Florida, Louisiana and Massachusetts. Most of these wild, free-swimming fish harbored several drug-resistant bacterial strains.
ScienceDaily (June 18, 2010) — The Gulf of Mexico: what role will the Mississippi River play in oil washing ashore and into delta wetlands? One of the spill’s greatest environmental threats is to Louisiana’s wetlands, scientists believe. But there may be good news ahead.
Sedimentary cores taken from the ocean floor in four locations show that climate patterns in the tropics have mirrored Ice Age cycles for the last 2.7 million years and that carbon dioxide has played the leading role in determining global climate patterns. Cores from site 806 were used as controls. (Credit: Timothy Herbert, Brown University)
ScienceDaily (June 17, 2010) — Increasingly, the Earth’s climate appears to be more connected than anyone would have imagined. El Nino, the weather pattern that originates in a patch of the equatorial Pacific, can spawn heat waves and droughts as far away as Africa.
ScienceDaily (June 17, 2010) — Professor Stan Kolaczkowski and his team from Chemical Engineering at the University of Bath are collaborating with mechanical engineers from Duke University in the US to develop a chemical-free way of removing carbon dioxide from the air inside deep sea human habitats.
NOAA Ship Thomas Jefferson in the Gulf of Mexico. (Credit: NOAA)
ScienceDaily (June 17, 2010) — NOAA Ship Thomas Jefferson departed Galveston, Texas, June 15 to continue research on the BP Deepwater Horizon oil spill’s impact on the Gulf of Mexico. During the three-week mission, the research vessel will use sophisticated acoustic and water chemistry monitoring instruments to detect and map submerged oil in coastal areas and in the deep water surrounding the BP well head.
ScienceDaily (June 16, 2010) — Crayfish make surprisingly complex, cost-benefit calculations, finds a University of Maryland study — opening the door to a new line of research that may help unravel the cellular brain activity involved in human decisions.
ScienceDaily (June 16, 2010) — Just as President Barack Obama called for in his address to the nation last night, Americans are demanding that BP and all other companies be responsible to both their shareholders and society, according to a new report from Rice University’s Jones Graduate School of Business.
ScienceDaily (June 15, 2010) — The economically important, environmentally sensitive Atlantic salmon species is one step closer to having its genome fully sequenced, thanks to an international collaboration involving researchers, funding agencies and industry from Canada, Chile and Norway.
This sampling plan was put together by scientists aboard the R/V F.G. Walton Smith using particle trajectories calculated by the University of Miami Rosenstiel School of Marine & Atmospheric Science’s Coastal Shelf Modeling Group, in combination with information provided by Roffer’s Ocean Fishing Forecast Service and remotely sensed images from UM’s Center for Southeastern Tropical Advanced Remote Sensing. (Credit: ROFFS/UM-CIMAS)
ScienceDaily (June 14, 2010) — A team of dedicated South Florida researchers from the University of Miami’s Cooperative Institute for Marine and Atmospheric Studies (CIMAS) and the National Oceanic and Atmospheric Administration’s Atlantic Oceanographic and Meteorological Laboratory (NOAA/AOML) were determined to check on whether oil was, as predicted, being pulled into the Loop Current and carried toward the Dry Tortugas.
ScienceDaily (June 14, 2010) — Researchers at The University of Texas at Austin’s Texas Advanced Computing Center (TACC) are using the Ranger supercomputer to produce 3-D simulations of the impact of BP’s massive Gulf of Mexico oil spill on coastal areas.
ScienceDaily (June 14, 2010) — North America’s nearly 2,000 marine protected areas represent an unprecedented effort to protect the continent’s fragile marine environments and are found throughout the marine ecoregions that encircle our continent.
A harbor seal’s whiskers are as good at detecting fish as echolocating dolphins, new research shows. (Credit: iStockphoto/Dave Brenner)
ScienceDaily (June 13, 2010) — When a hungry harbor seal sets off in pursuit of a fish diner, the animal has a secret weapon in its tracking arsenal: its whiskers. Detecting hydrodynamic trails in water with their sensitive whiskers, seals easily track passing fish even in the most turbid conditions. Wolf Hanke from the University of Rostock, Germany, explains that blindfolded seals can track passing mini-submarines for a distance of 40m before the wake peters out. However, the hydrodynamic trails left by subs are different from those produced by fish fins, so how long could a seal track a trail generated by a moving fin before the turbulence became too faint to follow?
ScienceDaily (June 10, 2010) — It’s no secret that sharks have a keen sense of smell and a remarkable ability to follow their noses through the ocean, right to their next meal. Now, researchers reporting online on June 10th in Current Biology, have figured out how the sharks manage to keep themselves on course.
Fonte: ScienceDaily Environment Headlines – for the Week of June 20 to June 27, 2010