What are we doing to our oceans in the name of oil and energy?!?!?!?

http://news.yahoo.com/s/yblog_thelookout/20110404/ts_yblog_thelookout/transocean-awards-safety-bonuses-to-execs-bp-vies-to-resume-gulf-oil-exploration

I know there is a lot of water in the ocean, but how much oil, trash, and radiation can we pump into it before reaches maximum dilution?

http://news.yahoo.com/s/ap/20110405/ap_on_bi_ge/as_japan_earthquake