This morning Nick changed the topic he wanted me to cover to; Shipwrecks.

There are many shipwrecks in the worlds oceans. Many of them are from the first and second world wars. When these ships sank, most of them contained ship fuel oil, one of the most dirty fuels available at the time. All of these shipwrecks are in the process of degrading, slowly rusting on the bottom of oceans, harbours and seas. If all the oil was released, the amount that would go into the seas would rival that of the recent release in the Gulf of Mexico, by a factor of ten or more.

There are companies that are reclaiming this oil, but the process is slow and at the current rate many shipwrecks are not going to be emptied before they rust and release their toxic cargo.