The Sierra Club writes to the New York Times:
In his column, N. Gregory Mankiw argued for a carbon tax that would require offsetting reductions in other taxes.
But in doing so, he was dismissive of changes in societal values and regulation as paths to reduced carbon emissions. Such paths have been effective in other arenas — curtailing the use of tobacco, for example. And when it comes to gasoline use, social values about driving are already changing in an environment-saving direction, especially among young people.
So instead of dismissing those approaches, I would rather ask, “Where is the leadership in government, in the private sector, and in the media, to help make greenhouse gases as offensive to us as cigarette smoke has become?”