Researchers have more than once warned of “dead zones” and toxic algal blooms as a consequence of changing climatic conditions. Ocean temperatures are increasing, and this in turn encourages a new set of biochemical processes.
Professor Hollibaugh and a colleague report in the journal Environmental Science and Technology that over the course of eight summers they measured peaks of nitrite, alongside massive increases in the numbers of the microorganisms that produce it, in coastal waters off Georgia.
The kind of toxic algae that forms each summer on Lake Erie and other lakes around Ohio feeds on phosphorus, a key element of livestock manure and sewage. Much of the phosphorus that gets into the lake comes from the Maumee River, which flows through eastern Indiana and western Ohio, depositing its waters into the western part of Lake Erie near Toledo.
Manure and sewage wash from soil and into the rivers and streams that feed the Maumee. More rains mean more runoff.
“When you can’t breathe, nothing else matters,” once a tagline of the American Lung Association, today it might easily describe what is happening in many areas of the ocean. Hypoxia, the lack of oxygen in our estuaries, coastal and deep… Read More ›
Westport, CT and Glen Cove, NY (June 8, 2015) — A first-ever ecosystem health report card released today shows Long Island Sound earning grades of very good for water quality in Eastern Long Island (an “A”) to very poor for… Read More ›
Flame retardants and pesticide byproducts are showing up at potentially toxic levels in sharks, rays and other marine life in the Indian River Lagoon and in the ocean just off Brevard County. Little is known about the health effects of… Read More ›
“Microbeads have only been around for the last decade. There’s significant indications that the L.A. River is affected and there’s evidence that it’s already finding their way to our aquifers,” says Bloom.
Dead zones, or ocean hypoxia, is in the news this week. Besides the Gulf of Mexico dead zones, the Chesapeake Bay has struggled with oxygen depleted water as well. The following is an abbreviated report from the Washington Post. Three… Read More ›
MORRO BAY, Calif. – Packed with large nets, wooden boards and a large crate, a dark blue truck scoured the edges of surfer-lined Pismo Beach late one morning earlier this month. Onlookers in the distance tipped them off to what… Read More ›
That’s not a dire prediction linked to climate change. It’s already starting to happen as the ocean gets more acidic. And for the Lowcountry, ocean acidification might not even be the real threat. It might be what scientists call the one-two punch of acidification and low oxygen in the estuaries, the nursery for the shellfish we eat – shrimp, oysters, clams.
New management is needed for the planet’s most important common resource Feb 22nd 2014 | From the print edition The Economist IN 1968 an American ecologist, Garrett Hardin, published an article entitled “The Tragedy of the Commons”. He argued… Read More ›