The jejunosity (hat-tip to Allan Konigsberg) of this effort is multiple:
McKibben thinks his gesture might start a new social movement.
McKibben thinks “slowing global warming” can possibly be the core issue of a new social movement at the present time.
McKibben describes Obama as “doing lots of good practical things already.”
McKibben is “surprised” his gesture has not yet been embraced by Obama, and apparently has devoted no thought to the question of why not.
McKibben thinks “the fossil fuel industry” is the ultimate culprit, and does not mention the automotive-industrial complex.
Like virtually all green activists, McKibben keeps the word “capitalism” in the closet, even as Great Depression III continues to gather sucking force, thereby ensuring his “movement” will remain an Ivy League jejunosity.