I was in touch with a friend at Ethical Junction today and he pointed me towards some posts on one of their sites. I have just read a couple with interest and wanted to share:

http://www.ethical-junction.org/ethicalpulse/index.php?/archives/965-Higher-car-tax-alone-will-not-turn-cars-electric.html
http://www.ethical-junction.org/ethicalpulse/index.php?/archives/969-Editorial-Crude-Awakening-the-social-economic-benefits-of-the-end-of-the-world.html

I was particularly interested in this too, because green driving was on my mind yesterday.

http://www.eta.co.uk/green_driving

Enjoy!