The Sea
by accident
Oil spills occur with depressing regularity. There are oils spills every year to a greater or lesser magnitude.
A long time
It can occur on top of the water or under water.
Oil Spills . Global Warming Would Take Longer Than a Oil Spill
Generally, oil spills that occur in close to fishing areas, environmentally sensitive wetlands, and beaches are the most harmful. Some of the large tanker accidents have occurred in the open seas, and the environmental impact was minimal.
Oil spills occur around the world, so many types of animals and plant life can be affected. Oil spills can occur on land and in the oceans. But I could not find any case where cows had been affected. Most common is environmental damage to marine life due to pipeline breaks, tanker accidents, production platform accidents and drilling rig accidents.
Oil spills are usually occured by a leak in the ocean killing out whales and dolphins. Hope I helped x Alex Perkins, 12 years old .. x
The Kuwait Oil fires were likely the most environmentally damaging oil spills. It amounted to a total of at least 136,000 tons of crude oil spilled. It was the largest oil spill recorded yet.
Land based wells can blow out. See related link.
1979, although the years 1974-1980 were all bad years. See links. The second link shows a huge number of very small spills and very few large ones.
It can definitely contribute to oil spills.