The best of EcoWatch, right in your inbox. Sign up for our email newsletter!
By Kevin Mathews
If you like to eat shellfish, you may want to start reconsidering your dietary choices in light of our changing environment. As NPR reports, researchers are linking climate change with an increase in potentially lethal neurotoxins found in shellfish.
Published in the Proceedings of the National Academy of Sciences, a new study demonstrated that when oceans get warmer (a direct consequence of the rising atmospheric temperatures,) production of these neurotoxins, known as domoic acid, is boosted.
To find the source of domoic acid, you have to go straight to the bottom of the food chain: algae. When shellfish like clams, mussels and crabs consume tainted algae, the poison doesn't affect them directly, but they carry the neurotoxins in their body, which subsequently have consequences in the people who eat them.
(Not all creatures are impacted equally, however. While clams may hold on to the toxins for as long as a year, mussels can cleanse themselves of the dangerous acids within a matter of weeks).
Humans who wind up consuming shellfish containing domoic acid can develop respiratory problems, experience memory loss and in some cases death. In acute cases, the victims generally suffer from stomach problems like diarrhea and vomiting.
Even animal lovers who don't include shellfish in their diets should be alarmed by this news. Other creatures like birds and seals that eat life with the toxins can suffer just like a human would. Last year, the Marine Mammal Center reported that 75 percent of its sea lion patients were the victims of domoic acid toxicity.
The good news is that health officials are able to test seafood samples to identify whether a toxin outbreak is present in the waters, but it's not practical to verify whether all mussels, clams and crabs can be tested on an individual basis. Besides, these tests can't help spare the sea lions and birds that will continue to unwittingly eat tainted shellfish.
In 2015, lofty ocean temperatures ushered in so much domoic acid that the Dungeness crab industry on the U.S.'s Pacific coast had to stop fishing because the crabs were too risky to eat. Scientists believe that that blockage is a sign of what's to come.
As Scientific American points out, the seafood industry is already putting this research to use by starting to track ocean temperatures to determine when shellfish are most susceptible to domoic acid. This knowledge could help companies to plan around impending economic hardship, not to mention prevent a public health crisis.
Sadly, domoic acid is just one consequence of rising ocean temperatures. Other devastating examples include:
Reposted with permission from our media associate Care2.
EcoWatch Daily Newsletter
By Ketura Persellin
Global consumption of beef, lamb and goat is expected to rise by almost 90 percent between 2010 and 2050. But that doesn't mean you need to eat more meat. In fact, recent news from Washington gives you even less confidence in your meat: Pork inspections may be taken over by the industry itself, if a Trump administration proposal goes into effect, putting tests for deadly pathogens into the hands of line workers.
‘Companies Should Not Be Allowed to Use Hazardous Ingredients in Products People Use’: Michelle Pfeiffer Speaks Up for Safer Cosmetics
The beauty products we put on our skin can have important consequences for our health. Just this March, the U.S. Food and Drug Administration (FDA) warned that some Claire's cosmetics had tested positive for asbestos. But the FDA could only issue a warning, not a recall, because current law does not empower the agency to do so.
Michelle Pfeiffer wants to change that.
The actress and Environmental Working Group (EWG) board member was spotted on Capitol Hill Thursday lobbying lawmakers on behalf of a bill that would increase oversight of the cosmetics industry, The Washington Post reported.
By Julia Conley
Scientists at the United Nations' intergovernmental body focusing on biodiversity sounded alarms earlier this month with its report on the looming potential extinction of one million species — but few heard their calls, according to a German newspaper report.