lunes, 7 de junio de 2010
An epic disaster on the Gulf of Mexico...
The Deepwater Horizon oil spill, also called the BP Oil Spill, or the Gulf of Mexico oil spill, is a massive ongoing oil spill in the Gulf of Mexico, now considered the largest offshore spill in U.S. history. The spill stems from a sea floor oil gusher that followed the April 20, 2010 Deepwater Horizon drilling rig explosion. The gusher, estimated to be flowing at 12,000 to 100,000 barrels (500,000 to 4,200,000 US gallons; 1,900,000 to 16,000,000 litres) per day.
As of May 30, dead animals collected from the oil spill zone included 491 dead birds, 227 sea turtles, and 27 mammals including dolphins, although according to the U.S. Fish and Wildlife Service these animals have not been determined to have been killed by the oil. Samantha Joye of the University of Georgia indicated that the oil could harm fish directly, and microbes used to consume the oil would also add to the reduction of oxygen in the water, with effects being felt higher up the food chain. According to Joye, it could take the ecosystem years and possibly decades to recover from such an infusion of oil and gas.
This disaster is a reminder for humans to understand how our actions can affect the environment.
martes, 1 de junio de 2010
Giant (I mean Giant!!!) Sinkhole Pierces Guatemala
A huge sinkhole in Guatemala City (map), Guatemala, crashed into being on Sunday, reportedly swallowing a three-story building—and echoing a similar, 2007 sinkhole in Guatemala.
The sinkhole has likely been weeks or even years in the making—floodwaters from tropical storm Agatha caused the sinkhole to finally collapse, scientists say.
The sinkhole appears to be about 60 feet (18 meters) wide and about 30 stories deep, said James Currens, a hydrogeologist at the University of Kentucky.
A ruptured sewer line is thought to have caused the sinkhole that appeared in Guatemala City in 2007.
The 2010 Guatemala sinkhole could have formed in a similar fashion, Currens said. A burst sanitary or storm sewer may have been slowly saturating the surrounding soil for a long time before tropical storm Agatha added to the inundation.
Depending on the makeup of the subsurface layer, the Guatemala sinkhole "could eventually enlarge and take in more buildings," he said.
Typically, officials fill in sinkholes with large rocks and other debris. But the 2010 Guatemala sinkhole "is so huge that it's going to take a lot of fill material to fill it," Currens said.
"I don't know what they're going to do."
For more info and pics, check here---