Today the International Herald Tribune reported on gasoline price increases:

Gasoline prices, which for months lagged the big run-up in the price of oil, are suddenly rising quickly, with some experts fearing they could hit $4 a gallon by spring. Diesel is hitting new records daily and oil closed at an all-time high on Tuesday of $100.88 a barrel.

The increases could not come at a worse time for the economy. With growth slowing, high energy prices that were once easily absorbed by consumers are now more likely to act as a drag on household budgets, leaving people with less money to spend elsewhere. These costs could exacerbate the nation's economic woes, piling a fresh energy shock on top of the turmoil in credit and housing.

Can someone explain to me why environmentalists aren't cheering this? If we are truly going to end foreign dependence on oil, we need much much higher gasoline prices. Do people not understand that higher prices equal lower demand?