HORTICULTURE

Detailed explanation-1: -On March 24, 1989 the oil tanker Exxon Valdez ran aground in Prince William Sound, Alaska, spilling 11 million gallons of oil. The ecologically sensitive location, season of the year, and large scale of this spill resulted in one of the largest environmental disasters in U.S. history.

Detailed explanation-2: -The BP Deepwater Horizon Oil Leak in the Gulf of Mexico On April 20, 2010, high-pressure oil and gas escaped from BP’s Deepwater Horizon exploratory well in Mississippi Canyon Block 252 which was located 77 km offshore.

Detailed explanation-3: -A small portion of the oil from the 1989 Exxon Valdez spill still lingers in patches beneath Prince William Sound, Alaska, beaches. However, this and other studies suggests the remaining oil is sequestered, or buried, and currently is not posing a risk to the coastal and marine ecosystem.

Detailed explanation-4: -On April 20, 2010, the oil drilling rig Deepwater Horizon, operating in the Macondo Prospect in the Gulf of Mexico, exploded and sank resulting in the death of 11 workers on the Deepwater Horizon and the largest spill of oil in the history of marine oil drilling operations.

Detailed explanation-5: -Approximately 11 million gallons of oil spilled into the Sound’s rich and productive waters. The oil killed and injured seabirds, sea otters, harbor seals, bald eagles, orcas and other wildlife. Eventually, oil from the spill affected more than 1, 000 miles of Alaska’s remote and rugged coastline.