For the Kerry-Boxer bill (the US Senate emissions trading legislation) to be passed, it will require 60 out of 100 votes in order to avoid a filibuster. This will be difficult. Passage of the bill has become significantly more likely due to the support of Republican Senator Lindsey Graham. Graham and Kerry have written an op-ed in the New York Times supporting climate legislation and discussing what is likely to be in it. This is good news, and Senator Graham deserves to be congratulated.