Obama's legacy is going to rest on what he does with this issue. When our great-great-grandchildren are living under circumstances harsher than we can imagine:famine, drought, flood, hurricanes, fires -- all preventable, but permitted because of inaction, Boner's will be a forgotten name. Obama's will not. He'll be regarded as a villain by history, or worse, a sad time-server who talked a good game but was too timid to act.
If he is able to put up a fight, to call out the ignorant and callow deniers who are so willing, even eager, to sacrifice the future for the sake of their own personal comfort and power, if he can do that seriously and in a way that leaves no doubt he is doing everything -- everything -- in his power to beat them back and set the Nation and, through his influence, the World on a proper course that would stave off calamity -- he will be remembered as a hero.
He'll be a hero even if he fails. As long as the World knows he tried. But if he fails to try . . . .