London desperately wants to be recognized as the greenest capital of the civilized world by launching, often silly, green initiatives. The latest effort is collaboration with Hyundai is a unique piece of design theatre that aims to educate people about the real-life benefits of hydrogen fuel cell technology.

In it, a Hyundai ix35 Fuel Cell powers a farm! Not a proper, full-size farm, mind you, but a tiny scale model one. This is to showcase the biggest selling point of the hydrogen fuel cell system that is emitting nothing but H2O in form of water vapor. You can raise plants and fruits with the stuff coming out of this car’s exhaust.

The small exhibition highlights the benefits of Aquaponics. It is a sustainable farming solution; a combination of hydroponics (growing plants in water) and aquaculture (raising fish in tanks). The Fuel Cell Farm operates by taking the water emitted by the hydrogen-powered Hyundai ix35 Fuel Cell and filtering this water into the fish tank. The aquaponics technology then harnesses minerals from the fish waste to grow the plants on the farm. Clever, eh?

In a fortnight then, the car went from being the killer of plants and trees to their best friend. Not so fast, though, as there is a long and bumpy road ahead of the fuel cell technology to become mainstream. The biggest hurdle of them all is the infrastructure that’s needed to distribute hydrogen like petrol. Only then we can start dreaming about growing juicy tomatoes with our car’s tailpipe emissions.

The Fuel Cell Farm is positioned outside the front of the Design Museum in London for today only.