Why environmentalism is hot

I remember as a small child taking drives during the holidays to look at the Christmas lights around town. Then came the 1973 OPEC oil embargo and put an end to that. So now, 33 years later, how far have we come?

Is the relevant statistic that sales of hybrid cars doubled last year to 200,000—or that they were outsold by SUVs by a ratio of 23-1?