Written by Dave Dempsey
Published on December 8th, 2009
The discovery of malformed frogs in the Minnesota River watershed in the 1990s touched off field and lab research on endocrine disrupters that is continuing to yield findings.
Minnesota, the state that made national headlines with the discovery of malformed frogs in the 1990s, has found endocrine disrupting chemicals and traces of pharmaceuticals even in some of its most remote and otherwise cleanest waters. Armed with substantial state funding, the Minnesota Pollution Control Agency (MPCA) has released a new report and is now continuing field work to determine the aquatic range of endocrine disrupting chemicals that can mimic hormones and cause changes to the reproductive system or development of organisms.
The new study found the hormones androstenedione in 64 percent of sampled lakes and 50 percent of sampled rivers, estrone in 55 percent of the lakes and 75 percent of the rivers, and 17β-estradiol in 55 percent of the lakes and 38 percent of the rivers. “These may be of human origin, naturally occurring, or both,” MPCA observed. Bisphenol-A was found in 45 percent of the sampled lakes and 38 percent of sampled rivers.
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Written by Dave Dempsey
Published on December 2nd, 2009
The ancient lake sturgeon, a threatened species, is making a modest comeback in the Great Lakes after more than a century of overharvest and habitat destruction.
Even as news spreads of the possible imminent invasion of giant Asian carp in the Great Lakes, there’s also good news — the mammoth, native lake sturgeon is making a comeback, breeding where it hasn’t in decades. Once regarded by European settlers in the region as a trash fish, the sturgeon has long been venerated by Native Americans. Concerted habitat restoration and restocking programs have given new life to the fish, which can live over 100 years and grow to weights of 200 pounds and lengths of greater than six feet. In fact, one Michigan angler a few years ago mistook a resting sturgeon for a floating log — until it swam away.
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Written by Daniel Hohler
Published on November 29th, 2009
New research out of the UK shows definitively that reducing greenhouse gases can save millions of lives around the world. The research makes use of case studies to demonstrate the co-benefits of tackling climate change in four sectors: electricity generation, household energy use, transportation, and food and agriculture.
The studies were commissioned by the NIEHS, part of the National Institutes of Health (NIH), in part to help inform discussions next month at the U.N. Framework Convention on Climate Change in Copenhagen.
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Written by Jake Richardson
Published on November 26th, 2009
The Spicebush Swallowtail butterfly species was identified in September by Inland Fisheries and Wildlife Department biologists. 1934 was the last Maine sighting of the butterfly. The recent finding was in the hardwood swamps of Berwick and Wells.
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Written by Daniel Hohler
Published on November 26th, 2009
New findings, published in the October issue of the Journal of Archaeological Science, indicate early Europeans enjoyed a much broader diet than first suspected. We have known for a long while that early man hunted big game such as mastodons, now prehistoric bone findings show that early man also hunted and cooked game fowl.
The 202 bones, belonging to a species of diving ducks, and were found at Bolomor Cave near the town of Tavernes in Valencia, Spain. The ducks date to around 150,000 years ago, and seem to have been eaten with bad table manners.
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Written by Jake Richardson
Published on November 26th, 2009
A recent study has produced some astonishing and disturbing results. Tuna was ordered from 31 sushi restaurants. Genetic tests were then used to identify the species of fish ordered. Nineteen of the restaurants surveyed incorrectly described or could could not indicate which species of fish they had served. A few establishments actually served endangered bluefin tuna not knowing which tuna type they were selling to their customers.
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Written by Daniel Hohler
Published on November 25th, 2009
Whether you are eating turkey or tofurkey this Thanksgiving, you cannot deny the great sacrifice that turkeys are making to fill dinner plates across the nation. I figured I would honor their sacrifice here on the eve of thanksgiving, with some fun turkey facts.
- More than 45 million turkeys are eaten in the U.S. at Thanksgiving (one sixth of all turkeys sold in the U.S. each year). American per capita consumption of turkeys has soared from 8.3 pounds in 1975 to 18.5 pounds in 1997. Ten years later, the number has dropped slightly in 2007 to 17.5 pounds (more tofurkey?)
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Written by Dave Dempsey
Published on November 20th, 2009
Bighead carp are one of two non-native species of Asian carp causing widespread concern among Great Lakes advocates. The other is silver carp.
Great Lakes advocates are calling it a “conservation emergency” now that non-native Asian carp have been detected within seven miles of Lake Michigan. They want an immediate closure of locks and gateways leading to the lake in a literally”last-ditch” attempt to keep the fish out.
The fear is that the giant fish will disrupt the valuable Great Lakes sport fishery by outcompeting species at the top of the Lake Michigan food web, consuming the forage fish the established species depend on — and like many of the other 180 non-native aquatic species already in the Great Lakes, causing general ecosystem disruption.
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Written by Daniel Hohler
Published on November 19th, 2009
Writing for GreenOptions I sometimes get contacted by PR firms wanting to promote projects. Sight unseen I usually shrug them off, I happen to only write about items that I have seen or used, and can feel good about endorsing. When MSNBC contacted me the other day with a preview of a new special on animal conservation, I figured it was probably more of the same stories I have seen over and over again. However, when I watched the preview it sucked me in. It is hosted by Jeff Corwin, a famous naturalist you have probably seen on TV. I can say wholeheartedly that this looks like something that I can feel good about endorsing.
Every 20 minutes a species will go extinct, 20,000 species this year, and this Sunday, November 22, 8PM Eastern MSNBC will be airing “100 Heartbeats” hosted by Jeff Corwin to fight back. You can watch the preview here: http://www.msnbc.msn.com/id/21134540/vp/33490448#33490448
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Written by GO Media Sponsor
Published on November 17th, 2009
If you’re looking for an easy gift idea that supports your ideals and is delicious while doing it, we recommend sending gift boxes from Grounds for Change to the coffee lovers on your list this year! Every single bean that they roast is Fair Trade Certified, Organic Certified, CarbonFree Certified and Shade Grown, which means the possibility of a real livelihood for coffee growers, a breath of fresh air for the planet, zero net carbon emissions from “crop to cup” and healthy forests for migratory songbirds. Read the rest of this entry »
