The ocean is also affected by climate change. Ocean acidification is the evil twin (or wet underbelly) of global warming. Changing seawater chemistry is endangering life as we know it, including corals, shellfish, and the big fish we eat. The protein source for 1 billion people is endangered.

Please sign & tweet this petition. Ask President Obama to take the lead and work for a fair, ambitious, and binding agreement at COP-16 and the goal of 350 ppm (parts per million) of carbon dioxide in the atmosphere.

For more information please visit the website for A Sea Change: http://aseachange.net.

For more ways to help end ocean acidification, see http://www.aseachange.net/take_action.htm and http://350.org.