A big ad buy is going up around the country thanking or admonishing senators for their votes against or for the Murkoswki “Dirty Air” amendment, respectively.  

Here’s the ad thanking McCaskill for her vote against the Murkowski amendment, which would have stripped the EPA of its ability to regulate carbon emissions:

For what it’s worth, McCaskill did the right thing in this case, but she’s often been in both word and deed a force against doing anything noteworthy to help shift to a clean energy economy. Still, it’s worth encouraging people to call McCaskill to thank her for her vote so that she might hear from people other than those who shriek that “cap and tax” is nothing more than a scheme to take over the economy and give the profits to BP.