Stories tagged algae
Two-ton, 500 million-year-old fossil of stromatolite discovered In Virginia, U.S.
Here is a link to info about a huge stromatolite fossil:
Virginia Museum of Natural History scientists have confirmed that an approximately 500 million-year-old stromatolite was recently discovered at the Boxley Blue Ridge Quarry near Roanoke, Virginia. This specimen is the first-ever intact stromatolite head found in Virginia, and is one of the largest complete “heads” (of algae) in the world, at over 5 feet in diameter and weighing over 2 tons.
The oldest stromatolites have been dated at 3.46 billion years old.
Tags : A massive algae bloom is choking China’s Yellow Sea and threatening some Olympic events. Many Chinese cities dump untreated sewage into the Sea. Rich in nutrients, the sewage makes the algae grow like crazy. The problem goes beyond the inconvenience to boaters. The growing algae changes the near-shore habitat. And when all this algae dies, the bacteria that decays it sucks oxygen out of the water, killing fish and creating a dead zone.
And speaking of mud, scientists in Europe are experimenting with the genes of a light-sensitive algae, in hopes that they can be used to treat certain types of blindness.
Pond scum to the rescue: Researchers are looking at ways to produce fuel from algae. Photo from NOAA.
If some researchers in Colorado have their way, you may one day be driving a car powered by pond scum. Solix Biofuels is one of a handful of companies trying to produce biodiesel from algae.
May people consider biodeisel fuels, like ethanol, a preferable alternative to gasoline for powering. It is renewable (we’ll never run out; we just grow some more); it pollutes less; it is non-toxic and biodegradable; and we can grow it in the US, and not have to import oil from overseas.
One of the big problems with biofuels, though, is they are made from plants. Some of those plants, like corn and soybeans, we eat. Turning those plants into fuel is already driving up the price of food. And replacing all our oil with biofuel would require more farmland than exists in the entire nation.
This is where algae comes in. Algae produces vegetable oil, which can be refined into biodiesel. It can grow anywhere you can set up water tanks. It thrives on sunshine, which is plentiful and free. And it pulls carbon dioxide out of the air. (You could, in fact, take the CO2 produced by a traditional power plant and pump it straight into an algae farm)
Algae researchers are a long way from producing any biofuel yet. But this could be a way of meeting our energy needs while being gentler to the environment.
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