They've planted trees to offset the carbon emissions of their touring, scattered bikes around Charlottesville, Virginia to be used as low-impact, low-cost public transportation. Their Ben & Jerry's flavor, One Sweet Whirled, supports global warming relief and education organizations. Matthews (and his band) are aware that the environmental battle has many fronts

At the outset we were all given tour water flasks. Plastic anything is like contraband. Every bus and truck runs on bio-fuel. There is no idling, rather some new-fangled way to deliver electricity cleanly. They don't do airfreight, either. The list goes on. Everything is supremely managed to reduce the 'footprint.'

A brief history lesson for those so inclined: In 2001, Honda teamed up with rockers blink-182 and Everclear to launch the first-ever Honda Civic Tour. We started this nationwide concert series so fans could see their favorite bands at low ticket prices. Over the past nine years, we've been thrilled to showcase The Black Eyed Peas, Fall Out Boy, Panic At The Disco and many other amazing musicians. We're taking a year off in 2009, but don't miss our Heritage section to see the bands who've performed and the Civics they've customized

The band pitches in by fuelling their trucks and buses with biofuel, setting up an information eco-village they call Barenaked Planet, recycling and composting backstage debris and buying carbon offsets. Selling concert T-shirts made with organic cotton and collect broken guitar strings so they can be recycled into bracelets. And they're asking fans to join in as well.

Linkin Park converted their tour vehicles to run on eco-friendly fuel, a move that bass player Dave "Phoenix" Farrell says will save the equivalent of 400,000 miles worth of driving. Partnering with the organizations Music for Relief, Reverb and American Forests, Farrell says the group's recent Project Revolution tour was about tidying up the world and making it a better place for kids to live. Metal makes nice.

Chris Martin and mates were carbon footprinting their tours before it was fashionable by planting mango trees in impoverished locales in India.

Never say no to playing at eco-events and have a cut on Instant Karma: The Campaign to Save Darfur; Los Lobos just played the zero-waste Harmony Festival. Let's hope the boys plant some green in their "Brotherhood" scene.

EarthEco and Vans are teaming up to make '08 the greenest punk tour yet with a solar stage and tents, clean catering and "go green" fan contests.