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As animal births go, sea turtles arguably top the cuteness scale. Watching a hundred teeny turtles emerge from the sand, scrambling straight towards the sea in a gleeful mad dash for the future is nothing short of incredible:

From the sandy shore, each season’s new hatchlings embark on the same journey that their forebearers have made for more than a hundred million years. This year, though, there was a 200-million gallon surprise lying in wait for Alabaman and South Floridian hatchlings: the Deepwater Horizon BP oil spill.

We are all familiar with the North-South divide that prevented agreement on a new climate treaty at Copenhagen last year. Relying on the principles of "Common But Differentiated Responsibility," the developing countries led by China, Saudi Arabia, Brazil and South Africa refused to adopt any proposal that would require them to reduce carbon emissions.

Meanwhile, the developed countries, most significantly the U.S., adamantly opposed any deal that would leave out these countries' large and growing contributions to the global climate problem.

Cancer-causing substances have been discovered in the waters and air of the Gulf of Mexico near the BP oil spill area, at levels much greater than before the spill occurred, according to researchers from Oregon State University.

Increased levels of polycyclic aromatic hydrocarbons, or PAHs—some of which are known carcinogens—were found along the coastlines of Mississippi, Alabama and Florida, but the greatest increase was off Louisiana, where levels measured 40-times greater than before the spill. Ominously, the substances are available to be taken into the food chain.

The measurements were recorded in May and June, during the height of the BP oil spill, when hundreds of thousands of gallons of oil gushed into the Gulf each day. New measurements are now being taken to see if degradation of the PAHs is taking place.

It turns out you really can get a free lunch—at least, if you're a great white shark.

A group (or, a shiver, if you prefer a more alliterative group name) of sharks found themselves presented with just such an unexpected buffet earlier this month, when a 36-foot Brydes whale (Balaenoptera edeni) was found drifting off the coast of South Africa.

Florida's St. John's River is fouled this summer with green slime, and dead fish are washing up on its shores. Every time it rains, nutrients like phosphorous and nitrogen poison this river and others all over Florida. The poison comes from sewage, animal manure and fertilizer.

It is a crisis big enough that the U.S. Environmental Protection Agency agreed in November 2009 to set the first-ever legal limits for nutrient poisoning.

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