From Ars Technica: Going organic hurts veggies, OK for legumes


How could organic stuff not be better? Eschewing pesticides and fertilizers is better for consumers, farmers, the environment, and all the denizens of the ecosystems that comprise it—everyone knows that. Even ask Prince Charles.

Yet, like many ideas that seem to be straightforward, this one turns out to be somewhat complex. If organic agriculture has lower yields, it will require more land to generate the same amount of calories as conventional farms. It will thus cause more deforestation and the loss of biodiversity that accompanies it—hardly environmental boons. To find out how things balance out, researchers at McGill and the Institute on the Environment at the University of Minnesota have performed a meta-analysis comparing the yields of organic and conventional farming. Their results are published in Nature.

 

 

from Ars Technica

From Discover Magazine: Eyeless Shrimp, Clawless Crabs, & Other Nightmarish Effects of the Gulf Oil Spill | 80beats

spacing is important
Mutated shrimp from Al Jazeera’s video report

Al Jazeera‘s report on seafood in the Gulf Coast reads like a horror story: eyeless shrimp, fish with oozing sores, clawless crabs. Unfortunately these deformities are very real and disturbingly common two years after the Deepwater Horizon oil spill in 2010. Chemical dispersants used by BP to “clean up” the oil spill are the likely cause.

Deformities happen even in ordinary circumstances, but scientists and fishers are seeing them in unprecedented scales in Gulf marine life. For example, half the shrimp caught in a Louisiana bay lacked eye sockets, according to fishers interviewed by journalist Dahr Jamail.

“Some shrimpers are catching these out in the open Gulf [of Mexico],” [commercial fisher Tracy Kuhn] added, “They are also catching them in Alabama and Mississippi. We are also finding eyeless crabs, crabs with their shells soft instead of hard, full grown crabs that are one-fifth their normal size, clawless crabs, and crabs with shells that don’t have their usual spikes … they look like they’ve been burned off by chemicals.

Perhaps the most troubling line in the whole article is this: “Questions raised by Al Jazeera’s investigation remain largely unanswered.” When Jamail …

 

from Discover Magazine

From Discover Magazine: The FDA Has Decided Not to Ban BPA–For Now | 80beats

Booooo!!!

===============================================================

campbells

Modern food packaging has transformed our diets for the better in many ways—fresh-tasting canned tomatoes in January and low rates of food-borne disease are not to be scoffed at. But increasing scrutiny of the materials in the cans, bottles, and vacuum packs you bring back from the store have raised fears that certain chemicals—notably, those like bisphenol A (BPA) that can mimic hormones such as estrogen—may be prompting early puberty in children, among other health problems. Last year, the National Resource Defense Council sued the FDA demanding that the agency respond to a petition to ban BPA in food packaging. Yesterday, the FDA announced that it would not be banning BPA, saying that the science linking the chemical to health risks is not yet convincing. But some companies, responding to consumer desires, are already  moving to remove it from their packaging.

Studies have found that there are low levels of BPA present in many people’s urine, but what’s still under discussion is whether the amounts we pick up can do anything to us, and even if it does little to adults, whether there are any stages of development—infancy, say—when BPA exposure might be …

 

from Discover Magazine