Air quality is [downright horrible][1] today so moderate your cycling speed and don’t get into that car if you’re a driver.
[1]: http://deus.irceline.be/~celinair/pm/pm10.php?lan=en (Particulate matter (PM10 and PM2.5) concentrations in ambient air [site language: English])
The interface at Paris:Invisible City takes a bit of getting used to but it's worth exploring.
Things aren’t looking too good at the moment. Then again it’s not really a surprise if you’ve been paying attention.
Potential future energy sources for Europe: a string of giant solar power stations along the Mediterranean desert shores and a a 5,000-mile wind-powered electricity supergrid, stretching from Siberia to Morocco and Egypt to Iceland.