Ships at Sea

http://www.nasa.gov/pdf/716960main_iss_calendar_2013.pdf

On November 21,2009 , this many vessels were active in the worlds oceans at one time. The Vessel ID System on the International Space Station can track every active vessel.

What if every one of them spills one spoonful of oil?

What if every one of them disposes of the days garbage into the water?

What if every one of them empties the day's sewerage?

Something to think about.