Great, informative web site - CO2 Now
with CO2 data since 1958 on Mauna Loa in Hawaii
... long data set and fascinating information
... added to WUaS's Ocean and Climate Management Plan
... the costs of oceans' rising are enormous - beyond imagination.
We're at 390 ppm now according to this web site, and Bill McKibben's goal, to prevent climate change leading to ocean's rising (?), is 350 ppm, at http://www.350.org, for example.
(http://scott-macleod.blogspot.com/2011/04/coral-spawngreat-informative-web-site.html - April 5, 2011)