Every week, the Freshwater Society posts a digest of regional, national and international news articles and research reports on water and the environment. Go to the Freshwater web site to read the latest digest, or click on the links below to read the original articles. If you see something that interests you, let us know by posting a comment.
Specter of ‘water wars’ may be overblown
The United Nations warned recently that climate change harbours the potential for serious conflicts over water. In its World Water Development Report of March 2009, it quotes UN Secretary-General Ban Ki-moon noting the risk of water scarcity “transforming peaceful competition into violence”. It is statements such as this that gave birth to popular notions of ‘water wars’. It is time we dispelled this myth. Countries do not go to war over water, they solve their water shortages through trade and international agreements.
Cooperation, in fact, is the dominant response to shared water resources. There are 263 cross-boundary waterways in the world. Between 1948 and 1999, cooperation over water, including the signing of treaties, far outweighed conflict over water and violent conflict in particular. Of 1,831 instances of interactions over international freshwater resources tallied over that time period (including everything from unofficial verbal exchanges to economic agreements or military action), 67% were cooperative, only 28% were conflictive, and the remaining 5% were neutral or insignificant. In those five decades, there were no formal declarations of war over water.
Florida considers charging water bottlers
Each day more than five million gallons of spring water is bottled in Florida, and companies pay almost nothing for local water permits. Florida is considering joining other states that have imposed “severance fees” on commercially bottled spring water. It would charge six cents for every gallon taken from springs or aquifers.
–National Public Radio
U.S. toxic chemical releases down slightly
The release of toxic chemicals to the air and water decreased across the country in 2007, according to the U.S. Environmental Protection Agency.
Releases to the air decreased 7 percent, and releases to water declined 5 percent, according to a report issued by the agency.
The report shows increases in the releases of persistent, bioaccumulative, and toxic chemicals like lead, dioxin, mercury and PCBs. Overall PBTs releases increased 1 percent. The increases were primarily due to a handful of facilities, and most of the releases reported were not to the air or water.
Total disposal or other releases of mercury increased 38 percent, but air emissions of mercury were down 3 percent. The majority of mercury releases were reported by the mining industry.
State-by-state data on facilities and releases to air, land and water can be found by accessing the EPA’s state fact sheet by clicking here.
Additional information on releases on zip code, county and facility can be found using the TRI explorer, accessible here.
–U.S. Environmental Protection Agency
Major bird populations decline
Several major bird populations have plummeted over the past four decades across the United States as development transformed the nation’s landscape, according to a comprehensive survey released by the Interior Department and outside experts, but conservation efforts have staved off potential extinctions of others.
“The State of the Birds” report, a broad analysis of data compiled from scientific and citizen surveys over 40 years, shows that some species have made significant gains even as others have suffered. Hunted waterfowl and iconic species such as the bald eagle have expanded in number, the report said, while populations of birds along the nation’s coasts and in its arid areas and grasslands have declined sharply.
–The Washington Post
Invasives rules sought for Lake Minnetonka
The Lake Minnetonka Association is calling for emergency boat launch rules for the coming season to prevent the spread of zebra mussels into the lake.
An exploding population of zebra mussels in Lake Mille Lacs warrants emergency action to protect Lake Minnetonka, the association says. It wants to require that all boats be clean and dry, inside and out, before they enter the lake.
The lakeshore owners group is pushing the Lake Minnetonka Conservation District, which manages lake issues for the 14 cities ringing the lake, to adopt these ramp rules and step up efforts to protect the lake from invasive species. It is also asking the cities to work on the problem as well.
Caribbean fish populations down
Populations of both large and small fish have been declining sharply across the Caribbean in the past 10 years, say researchers, who combined data from 48 studies of 318 coral reefs conducted over more than 50 years.
The data show that fish “densities” that had held steady for decades began to drop significantly around 1995, a trend not reported previously. Although overfishing has long taken a toll on larger species, the drop in smaller species that are not fished indicates that other forces are at work, said author Michelle Paddack of Simon Fraser University in Canada.
Drastic losses in coral cover and changes in coral reef habitats, driven by warming water temperatures and coral diseases, as well as sediment and pollution from coastal development could be among the factors.
–The Washington Post
Robotic carp developed to fight pollution
Robotic fish, developed by UK scientists, are to be released into the sea for the first time to detect pollution.
The carp-shaped robots will be let loose in the port of Gijon in northern Spain as part of a three-year research project.
If successful, the team hopes that the fish will used in rivers, lakes and seas across the world, including Britain, to detect pollution.
The life-like creatures, which will mimic the undulating movement of real fish, will be equipped with tiny chemical sensors to find the source of potentially hazardous pollutants in the water, such as leaks from vessels in the port or underwater pipelines.
The fish will then transmit their data through Wi-Fi technology when they dock to charge their batteries with last around eight hours.
EPA sponsors video contest
The U.S. Environmental Protection Agency is sponsoring a contest for the production of educational videos that will inspire people to help protect streams, lakes, wetlands, and coasts.
Two winners will each receive $2,500 and their videos will be featured on EPA’s Web site. The deadline for entry is Earth Day, April 29.
The contest has two categories: 30- or 60-second videos usable as a television public service announcement, and 1- to 3-minute instructional videos.
For information, go to contest rules on the EPA web site by clicking here.
–U.S. EPA web site
Dubuque museum works to save amphibians
Out of sight and tucked away under lock and key in the basement of the Mississippi River Museum & Aquarium, the tiny toads hopping about in climate controlled captivity might not seem sexy.
But when Lee Jackson, Abby Urban and Jerry Enzler begin to talk about their little guests, passion is just around the corner.
It’s a passion for preservation of the Wyoming toad, one of the four most endangered amphibian species in the United States, Urban points out. And one-tenth of the Wyoming toads in captivity are in her care.
–The Dubuque Telegraph Herald
European water use not sustainable, report says
European environmental officials warned that the continent does not have enough water to sustain current consumption levels.
The European Environment Agency issued a report that concluded the problem now applies to northern Europe as well as the south and cannot be addressed by expanding supplies alone.
“The short-term solution to water scarcity has been to extract ever greater amounts of water from our surface and groundwater assets,” said agency director Jacqueline McGlade. “Overexploitation is not sustainable.”
–United Press International