A post on the Nature News Blog reports that by 2030 the Norther Sea Route through the Arctic Ocean above Eurasia is expected to be navigable for nine weeks per year. The Northwest Passage through the Canadian Arctic Archipelago is expected to be navigable for five weeks per year.
“This visualization shows ocean surface currents around the world during the period from June 2005 through Decemeber 2007. The visualization does not include a narration or annotations; the goal was to use ocean flow data to create a simple, visceral experience.” Quoted from the NASA YouTube Channel.
“Los Angeles, a metropolis perched on the edge of a coast, can expect to experience sea level rise of as much as two feet due by 2050 due to climate change, according to current projections.” Quoted from the USC press release.
“Widespread floods are plaguing at least three states in southeast Brazil. Heavy rains lasted throughout December in Minas Gerais, Bahia, and Espirito Santo States, causing floods and mudslides. December rainfall in Espirito Santo has already reached 714 millimeters (28.11 inches), an all-time record monthly rainfall.”
“The United States is losing wetlands in coastal watersheds at a significant rate, according to a new report released today by the U.S. Fish and Wildlife Service and the National Oceanic and Atmospheric Administration. [...] It concludes that more than 80,000 acres of coastal wetlands are being lost on average each year, up from 60,000 acres lost per year during the previous study.” Quoted from the U.S. Fish and Wildlife Service press release.
“Communities and coastal habitats in the southern Chesapeake Bay region face increased flooding because, as seawater levels are rising in the bay, the land surface is also sinking. A USGS report concludes that intensive groundwater withdrawals are a major cause of the sinking land, or ‘land subsidence’, that contributes to flooding risks in the region.” Quoted from the USGS press release.
Typhoon Haiyan hit the Philippines as a Category 5 typhoon, with winds gusting up to 170 miles per hour, swamping coastal areas in storm surge and destroying thousands of buildings that were in its path.
We have posted views of Earth from NASA’s Suomi satellite that show night illumination and natural gas flaring for oil industry sites in the Bakken Formation, Eagle Ford Shale, Alaska North Slope, United States Gulf, Mexican Gulf, Venezuela Orinoco Field, Brazil offshore basins, North Sea, North Africa onshore, west Africa offshore, and Persian Gulf.
“The continued accumulation of sand within the iconic ring-shaped reefs inside Maldivian atolls could provide a foundation for future island development new research suggests. Islands like the Maldives are considered likely to be the first to feel the effects of climate change induced sea level rise, with future island growth essential to counter the threat of rising sea levels.” Quoted from the press release by the University of Exeter.
“Three new USGS products in an ongoing series by the California Seafloor Mapping Program were released August 9th, 2013 — a map set for the area offshore of Carpinteria in southern California, a catalog of GIS data layers for all of CSMP’s published maps, and a collection of videos and photos of the seafloor along the entire California coast.” Quoted from the USGS announcement.
“Two beachfront communities in New Jersey were hit hard by Hurricane Sandy, but one fared much better than the other thanks to a long-forgotten seawall buried beneath the sand.” Quoted from the NSF press release.
“How do we know what the ancient earth was like before people were around to witness and record conditions? One of the main ways geoscientists unravel past climates and ecosystems is by conducting detailed studies of deposits that contain the preserved remains of ancient plants and animals.” Quoted from the article by Alexandra Guth, Michigan Technological University.
“The probability of hurricane-induced coastal change on sandy beaches from Florida to New York has been assessed for the first time in U.S. Geological Survey studies released today. [...] The two reports — one assessing the coastline from Florida to North Carolina, the other from Virginia to New York — can function as part of a “virtual toolkit” for U.S. Atlantic coast community planners and emergency managers as they make decisions on how to best address coastline vulnerabilities.” Quoted from the USGS publication release.
“Scientists are expecting a very large “dead zone” in the Gulf of Mexico and a smaller than average hypoxic level in the Chesapeake Bay this year, based on several NOAA-supported forecast models.” Quoted from the USGS Newsroom.
The Geological Society of America has published a draft position statement titled: “Managing U.S. Coastal Hazards“.
A quote: “Storms, tsunamis, and rising sea levels threaten U.S. coastal communities and their economies. Much of the nation’s existing coastal infrastructure must be adapted to expected future conditions or relocated, and new coastal development and post-storm reconstruction should be planned, sited, and maintained with coastal geologic hazards clearly in mind.”
Laura Guertin has posted an interesting essay with images titled: “Coastal Processes and Environments Under Sea-Level Rise and Changing Climate: Science to Inform Management” on the Speaking of Geoscience blog.
“Dynamic modeling of sea-level rise, which takes storm wind and wave action into account, paints a much graver picture for some low-lying Pacific islands under climate-change scenarios than the passive computer modeling used in earlier research.” Quote from the USGS press release.
“According to a new technical report, the effects of climate change will continue to threaten the health and vitality of U.S. coastal communities’ social, economic and natural systems. The report, Coastal Impacts, Adaptation, and Vulnerabilities: a technical input to the 2013 National Climate Assessment, authored by leading scientists and experts, emphasizes the need for increased coordination and planning to ensure U.S. coastal communities are resilient against the effects of climate change.” Quoted from the USGS press release.
The most recent issue of BOEM Ocean Science has information about beach restoration projects in the Hurricane Sandy recovery effort.
Welcome to Geology News!
We are constantly looking for interesting items related to geology and general science. When we find something interesting we share it here.
Bookmark this page and visit often. You can also receive our news for free by RSS feed or email. We publish updates three or four days per week.
Popular on Geology.com
Homeowners Insurance usually does not cover damage caused by floods, landslides, earthquakes and other geohazards.
Frac Sand is a high-purity silica sand used in hydraulic fracturing to enhance the flow of oil and gas from tight rock units.
Diamonds from Coal? Diamonds form under a variety of conditions that rarely involve coal as a source of carbon.
Fluorescent Minerals glow with spectacular colors when illuminated in the dark with an ultraviolet lamp.
Helium is a byproduct of the natural gas industry. Its most important use is in magnetic resonance imaging (MRI) machines.