Tuesday, October 28, 2014

Where Did All the Oil Go?

Geology Page has a great article on the 2010 Deepwater Horizon spill in the Gulf of Mexico. You might think you have heard it all regrading this disaster, but you haven't.

Excerpts from the article, Where Did All the Oil Go?

Controlled burning of surface oil slicks during the Deepwater Horizon event.
Credit: David Valentine


Due to the environmental disaster's unprecedented scope, assessing the damage caused by the 2010 Deepwater Horizon spill in the Gulf of Mexico has been a challenge. One unsolved puzzle is the location of 2 million barrels of submerged oil thought to be trapped in the deep ocean.

UC Santa Barbara's David Valentine and colleagues from the Woods Hole Oceanographic Institute (WHOI) and UC Irvine have been able to describe the path the oil followed to create a footprint on the deep ocean floor. The findings appear today in the Proceedings of the National Academy of Sciences.

"Based on the evidence, our findings suggest that these deposits come from Macondo oil that was first suspended in the deep ocean and then settled to the sea floor without ever reaching the ocean surface," said Valentine, a professor of earth science and biology at UCSB. "The pattern is like a shadow of the tiny oil droplets that were initially trapped at ocean depths around 3,500 feet and pushed around by the deep currents. Some combination of chemistry, biology and physics ultimately caused those droplets to rain down another 1,000 feet to rest on the sea floor."

Monday, October 13, 2014

Creating A Global Water Crisis



Sara Gutterman, co-founder and CEO of Green Builder Media, addresses the water crisis the world faces today. Here are some excerpts from her article:


Water: it is a common agenda for all of us, for every walk of life. It’s our planet’s most valuable resource. Nations are powered by it. Life depends on it. And soon, we’ll be fighting over it.

We are creating our own global crisis—whether we realize it or not, water scarcity is here. If
current usage and population trends continue, global demand for water in 2030 will outstrip
supply by 40 percent.


The full article is available below via Environmental Leader.