Hi all, I've been thinking about how we're going to get around once the oil starts to decline in production around 2015. According to this article, trolley buses are the cheapest public electric transport we can whack up REALLY fast, 5 times cheaper than trams! That means instead of a 5km tram line you could have a 25 km trolley bus line! http://www.lowtechmagazine.com/2009/07/trolleytrucks-trolleybuses-cargotrams.html They can even carry cargo, but probably not the same density of tonnage that heavy rail can (which we'll need more of as well, especially intercity). Cargo trolley-truck. Or even this! But no one wants trolley-bus lines down EVERY street in their suburb, and I doubt we could afford that. So how can council rubbish trucks get around once they leave the main line and go down side-streets? The idea I have involves hybrid trolley buses and trolley trucks which also have diesel engines. They run on the trolley lines much of the time, but turn their biodiesel engine on when servicing side streets. Where does the biodiesel (or syngas) come from? Locally collected green waste pushed through a biochar plant! http://eclipsenow.wordpress.com/2007...nish-the-soil/ Then the council gets to:- 1. Be immune from the coming oil shocks 2. Have most council trucks running most of the time on wind & solar 3. Dispose of their green waste after extracting some syngas (or synfuel) from it 4. Sell the Biochar to local farmers markets, after peak phosphorus (20 years) this stuff will sell like gold! 5. Claim carbon credits for the sequestered Co2 in the biochar And your local council is now ready for the post-oil world, and probably making a bit more money to boot! Not bad hey? I just wish someone would run some figures on the "average" municipal green waste for various regions around the globe and how well this system would work.