Because the changing chemistry of the ocean threatens all marine life, Oceana has invested in an advertising campaign to highlight the most urgent goal: reducing CO2 emissions to achieve atmospheric levels of 350 parts per million (ppm) or less as soon as possible.
The three advertisements that Oceana will display in Copenhagen, Denmark, throughout the entire United Nations Framework Convention on Climate Change (UNFCCC) meeting, are depicted here: (See them at Oceana.)