Why is it hard to clean up oil spills?

Why is it hard to clean up oil spills? Oil spills are greatly varied, and so are the oils that are spilled. Heavier, denser oils (crude oil) pose more of an issue, as the evaporation rate is very low and the impact on the environment is much higher. Oils of higher density may even sink, … Continue reading Why is it hard to clean up oil spills?