Environmentally conscious consumers - a Euro-centric phenomenon?

Some friends and I were discussing the surge in popularity of environmental consciousness in consumers. European customers, my seasoned supply chain management consultant friend mentioned, are far more conscious of the carbon footprint of products they purchase. Volvo for one, has a carbon neutral, Co2-free truck manufacturing factory in Belgium. Why doesn't Volvo market that to sell more cars in the US? Do US consumers not care? As a 'Sushi-eating, Latte-drinking, Volvo-driving' 'liberal' - a tag a good friend of mine branded me with, I would be encouraged to repurchase a Volvo knowing that they are a more environmentally conscious company.

On the topic of environmentally conscious US companies, my wife recently bought two pairs of shoes from Timberland. On the box, I noticed a 'Green Report Card', that identifies the carbon footprint for the product. They include the energy spent to produce their product as well as produce a score card that displays the 'Green Index' of the product. Here is a press release on the topic:

http://www.timberland.com/corp/index.jsp?eid=8500007242&page=pressrelease

Incidentally one of her shoes had a Green Index score of 3 and another pair had a score of 6.5 - the factors feeding into the score being:

1. Climate Impact
2. Chemicals Used
3. Resource Consumption

One of the shoes took 3.1 kWh of energy to produce. I am not sure if they include the carbon footprint of their supply chain - post production - factory to customer, though. Way to go Timberland!