by Dr. Irene Novaczek
from: "Environmental Impact of the Offshore Oil and Gas Industry,"
During drilling and extraction of gas deposits from the sea floor, releases of gas into the marine environment are inevitable. Gas is dumped into the sea mixed in with produced water, may leak from pipelines, tankers and underwater storage tanks, or may be released during catastrophic well blowouts, explosions and smaller accidental spills. Spills and blowouts occur due to drilling equipment failure, corrosion of pipelines, human error, earthquakes, ice, storms, shipping accidents etc.