Mauna Loa Observatory http://whqr.org en Climate change milestone coincides with shifting paradigm, says Ira Flatow http://whqr.org/post/climate-change-milestone-coincides-shifting-paradigm-says-ira-flatow <p></p><p>Global warming is not always accepted as a foregone scientific conclusion.&nbsp; It still sparks political debate in some circles.&nbsp;</p><p> Tue, 28 May 2013 23:50:32 +0000 Rachel Lewis Hilburn 37211 at http://whqr.org Climate change milestone coincides with shifting paradigm, says Ira Flatow