In case you spent the last week living in an igloo on some remote Arctic tundra, here's a quick news update: the planet really is dying and it really is us stupid humans who are to blame. And that lovely white tundra you got so attached to? Might not be around much longer.

So what are you going to do about it, you stupid human you? Well, the first place you'll want to start purging your global guilt is your automotive habits, and we're not just talking about Chelsea Tractor drivers. Even if you don't own a car, you can be on your way to becoming Al Gore's best mate.

Ecoigo are "central London's environmentally conscious executive car service", which is just a long-winded way of saying that they're classy cabs without the carbon footprint. Their Hybrid Synergy Drive town cars not only look nice (leather interior, privacy windows), they also generate up to 89% fewer of those nasty smog forming emissions.