The human brain doesn't like inactivity and pretty much any activity uses energy or has some effect on the planet. If you don't ride your bike what will you do instead? Watch telly and use electricity, read a book printed on a cut down tree, go ride a push bike that's made in a factory, invent a new religion and plot world domination? Ok, the amount of damage varies but the alternative of sitting in a dark corner doesn't work either.
There are two ways to stop the disaster. We can stop what we are doing. This involves sitting in that dark corner for fun, stopping anyone in Asia or Africa having any hope of getting to our level of comfort, shooting 2/3 of the worlds population so the rest can live at our level and so on. No fun and honestly impractical as well as pretty nasty.
The other way is to get smarter. Recycle, use what we have better, share things out more equally. I have no problem cycling to work so I can use my share of the petrol for a trip to France if it means some hard working guy in China can have electricity 24 hours a day. I'd rather they invented fusion power so we can all have hydrogen powered superbikes, but not in out lifetime I guess. If I work harder than the guy in China I expect a bigger share, but it works the other way too. The problem is how we reach the point where there are sensible shares of the sustainable resources.
Small steps has to be the key, not massive revolutions based on one idea. A lot of motorsport is switching to bio-ethanol which is the most logical technology we have today (way better than the electric car brigade who seem to think the power for the charger comes from a magic imp). When we play we learn. Small steps hopefully filter to road bikes and make everyones share bigger. The sport in this case may or may not drive the change, so maybe we pay now for a gain later. The same can be said for thousands of touring riders demanding 100 mpg because petrol is £5 a litre. If the ideas don't come, motorsport and pleasure rides will die out naturally as people choose to spend what they are given differently.
OK, maybe we don't learn, but we wouldn't learn in that dark corner either.
Andy