There is no truly effective way of cleaning up an oil spill. All the options available are not fully effective or have negative impacts.
Burning the Slick
Unfortunately, burning the oil is a no-win situation; it creates large, toxic plumes of smoke that can result in respiratory problems and eye, nose, throat and skin irritations in both wildlife and humans. Birds may also become disoriented in the smoke.
Burning may be the lesser of two evils as it removes large amounts of oil that can result in immediate and long-term impacts to wildlife in the area, including skin irritations, organ damage, reproductive failures, developmental abnormalities and death.