Turning wastewater into sustainable fuel. This is the answer to two environmental challenges, namely reusing an increasingly scarce resource, water, and finding alternative energies to counter episodes of severe pollution that impose traffic restrictions in cities such as Madrid and Paris. The production and consumption of this new biofuel, created through the partnership between Aqualia and SEAT, reduces CO2 emissions by 80% compared to petrol powered vehicles. Just days before World Water Day is celebrated on 22 March, below are some facts and figures about this innovative biofuel.