Posted on October 16, 2014 by Bob Berwyn
Ocean acidification is an existential threat to many marine species and ecosystems.
Federal government has failed to implement several key steps required by 2009 law
By Summit Voice
FRISCO — Federal agencies well recognize the environmental threats of increasing ocean acidification, but so far, the response has been lackluster at best, according to the Government Accountability Office.
In a report issued this week, the GAO said federal agencies have been slow in implementing several requirements of the 2009 Federal Ocean Acidification Research and Monitoring Act, including outlining the budget requirements for implementing the research and monitoring plan. Continue reading
Filed under: climate and weather, global warming, ocean acidification | Tagged: Environment, global warming, greenhouse gases, ocean acidification, oceans | Leave a comment »
Posted on October 14, 2014 by Bob Berwyn
Study shows how cutting carbon pollution pays huge dvidends by reducing health care costs.
‘Carbon-reduction policies significantly improve air quality’
FRISCO — Adopting a carbon cap-and-trade program would easily pay for itself — and then some — by reducing health care costs associated with treating asthma and other medical conditions resulting from air pollution, MIT researchers said in a detailed study that looked at the comparative cost and benefits of three potential climate policies.
Policies aimed at cutting carbon emissions from sources like power plants and vehicles, also lead to reductions in other harmful types of air pollution, the scientists said, publishing their findings last month in Nature Climate Change.
Overall, the study found that savings on health care spending and other costs related to illness can be big — in some cases, more than 10 times the cost of policy implementation. Continue reading
Filed under: air quality, climate and weather, Environment, global warming | Tagged: air quality, carbon pollution, global warming, health, health care costs | 1 Comment »
Posted on October 13, 2014 by Bob Berwyn
Wolverine habitat in the western U.S.
Groups say federal agency erred by denying Endangered Species Act protection
FRISCO — Wildlife advocates are once again heading to federal court to seek Endangered Species Act protection for rare wolverines, a species deemed as vulnerable to global warming because of its dependence on deep spring snow cover for denning and breeding.
Wolverines live in small numbers mainly in the northern Rocky Mountains. The wide-ranging mammals were hunted, trapped and poisoned to near-extinction during the settlement era, and now face a climate whammy that could melt the big snowbanks they need for reproduction.
The U.S. Fish and Wildlife Service proposed an endangered species listing in 2013 in a rule supported by the agency’s own scientific reports and by independent review panels, but then reversed course in May 2014, asserting that climate models are not accurate enough to pinpoint threats to wolverine habitat. Continue reading
Filed under: biodiversity, endangered species, Environment | Tagged: Conservation biology, endangered species, global warming, U.S. Fish and Wildlife Service, wolverines | 1 Comment »
Posted on October 13, 2014 by Bob Berwyn
Iceberg tracks offer modern climate clues. bberwyn photo.
Study seeks abrupt climate change clues
FRISCO — Icebergs may have been drifting off the coast of Florida as recently as 21,000 years ago, university researchers said after developing a climate model that recreates ocean currents from the end of the last ice age.
The study implies that the mechanisms of abrupt climate change are more complex than previously thought, according University of Massachusetts Amherst oceanographer Alan Condron. The models are supported by the discovery of iceberg scour marks on the sea floor along the entire continental shelf. Continue reading
Filed under: climate and weather, global warming, Greenland | Tagged: abrupt climate change, climate change, Florida, global warming, icebergs | Leave a comment »
Posted on October 12, 2014 by Bob Berwyn
Study projects major shifts in species richness patterns
A map from the new University of British Columbia study shows the current distribution of species richness based on data going back to the 1950s.
FRISCO — Many fish species are racing away from the equator and toward the poles to escape steadily warming ocean temperatures. In a worst-case scenario of unchecked greenhouse gas emissions, many fish will disappear from the tropics by 2050, moving poleward by as much as 26 kilometers per decade.
Under the best-case scenario, where the Earth warms by just 1 degree Celsius, fish would move 15 kilometres every decade, according to a new study by scientists with the University of British Columbia study that examined the impact of climate change on fish stocks. Continue reading
Filed under: biodiversity, climate and weather, Environment, global warming | Tagged: climate change, Environment, fish, global warming, oceans, species richness | 1 Comment »
Posted on October 11, 2014 by Bob Berwyn
Study documents ‘climate refuge’ in Virgin Islands
Boulder brain corals were found in abundance under the mangroves and were healthy, while many of those in unshaded areas a short distance away were bleaching.
Photo Credit: Caroline Rogers, USGS.
FRISCO — Some coral species are finding a refuge of sorts from global warming by finding new habitat in the shade of red mangrove trees.
Scientists with the U.S. Geological Survey and Eckerd College documented discovery of the refuge in the U.S. Virgin Islands, where more than 30 species of reef corals were found growing in Hurricane Hole, a mangrove habitat within the Virgin Islands Coral Reef National Monument in St. John. Continue reading
Filed under: biodiversity, climate and weather, coral reefs, Environment, global warming, ocean acidification | Tagged: climate change, coral reefs, global warming, mangroves, U.S. Virgin Islands, Virgin Islands Coral Reef National Monument | Leave a comment »
Posted on October 10, 2014 by Bob Berwyn
PHOTO via U.S. GEOLOGICAL SURVEY. Melting Arctic sea ice is forcing walrus colonies into a shore-bound existence to which they aren’t adapted. Scientists say they’ve documented several cases of young calves being trampled in stampedes.
Dwindling sea ice leads to dramatic habitat changes for some marine mammals
FRISCO — For the sixth time in the last eight years, Pacific walruses living around Alaska have run out of ice. Instead of their usual resting places on ice floes, the marine mammals are hauling out on land — a clear consequence of global warming, according to U.S. Geological Survey scientists who are tracking the animals from the air.
Just in the past decade, summer sea ice has started retreating far north of the shallow continental shelf waters of the Chukchi Sea in U.S. and Russian waters, drastically changing living conditions for walruses and other species.To keep up with their normal resting periods between feeding bouts to the seafloor, walruses are taking to dry land. Continue reading
Filed under: biodiversity, climate and weather, Environment, global warming | Tagged: Arctic sea ice decline, global warming, marine mammals, walrsuses | 2 Comments »