The truck above is powered by a wood gas generator, except this one runs on coffee grounds. The Cafe Racer is a 1975 GMC pickup that essentially burns up used coffee to create a combustible gas. The gas is filtered on its way to the engine and, Viola, a caffeine-powered truck.
activism
A Truck That Runs on Coffee Grounds (and How Wood-Gas Powers Cars With Garbage) : Gas 2.0
Earth's Vigilante's: Inside the World of Guerrilla Gardening
Illegal in eyes of law - but a celebration of the planet in the eyes of nature lovers...the newest "green" underground trend you might not have heard about.

The Worst Pollution; or, A Green with Heart. Part 2: Turning Down the Thermostat
Part 2 of Justin van Kleek's musing on activism, anger and better ways to communicate an environmental agenda.

The Worst Pollution; or, A Green with Heart. Part 1: Toxic Avengers.
sustainablog's newest writer Justin van Kleek considers the (psychological) pollution environmental activists themselves can often spew. Or, to borrow the famous quote from Pogo, "we have met the enemy, and he is us."
The Green Tax Man: Good or Bad?
When the British Government announced their most recent budget earlier this year, there was much applause from green groups after chancellor Alistair Darling announced almost draconian increases in taxation on gas guzzling cars.
But how effective are these taxes?
re: No Gas Day May 15th
It's time for the yearly plea for a day where nobody buys gasoline causing the oil companies to collapse in a heap of conniptions. Or something like that. It's baloney to think one day with a few people not buying gasoline will make any difference. Instead what will make a difference is for lots of people to systematically end gasoline use.

Street Seders: Sacred Protest
Earth Day fell during Passover this year causing Jews to reflect on how an important tradition offers some wisdom about environmental challenges.
Governments pledge to clean up Robson Bight
On Friday, April 18 the federal and British Columbia governments announced that they will proceed with a recovery operation of the wreckage that continues to threaten the Robson Bight ecological reserve. The return of the orcas to the area in June makes this salvage operation time sensitive.
Opposition for Opposition's Sake? Thomas Friedman Gets an Earth Day Pie in the Face (w/video)
On Earth Day 2008, Thomas Friedman was giving a lecture on the politics & economics of global energy at Brown University. Shortly into the lecture, a female audience member ran on stage and threw a green pie at the New York Times columnist.

Green versus green
Environmentalists are used to fighting battles, but this week’s rejection of the Lewis wind farm in Scotland highlights how they are lining up against each other in countryside battles, as issues like protecting birdlife habitat conflict with the need to produce clean energy.
Korean Environmental Leader Refuses the Olympic Torch
Choi Seung-kuk, the Secretary General of Green Korea, one of South Korea’s largest environmental organizations, has officially bowed out as an Olympic torch bearer. In a press interview this morning, Mr. Choi cited China’s aggression in Tibet as his main reason for refusing to carry the Olympic torch when it arrives in Seoul, the capital city, on April 27.
Does Earth Day Matter?
Earth Day could be a powerful tool for education, discussion, and the mobilization of concerted political action on behalf of the environment. Earth Day could even be a national holiday, recognized with all of the rights and privileges associated with the title. Earth Day could take on greater political significance were heads of state to assemble along with heads of environmental groups, trade associations, labor unions, and indigenous populations.
It's a Big Green World Out There
 With its fresh and effective take, the site, described as a "call to action" by Casey Verbeck, CEO of GenGreen, identifies the best of the local green scene (including events, places, businesses, activities and jobs) in cities throughout the United States. "Businesses and consumers have new opportunities to think beyond the traditional barriers to encourage innovation and discoveries; driving social transformation through green economic development," says Verbeck.
Carbon Neutral Loyalty Program
New site, EcoPerks.com, launched this week offering simple ways to live a more carbon neutral lifestyle while earning 'EcoPoints' to be used toward valuable rewards. The platform is a unique blend of cause, commerce, content, community and carbon offset tools tied to the most generous rewards program on the Internet. EcoPerks.com has an unmatched range of products, information and functionality designed to promote carbon neutral living.
The Spy Who Was "Plane Stupid"
It’s been an intriguing week for British environmental activists, with the discovery of a spy in the camp at UK aviation protest group Plane Stupid...