For physics, the largest red circles ended up on Kiev and Moscow, while the largest green ones went to London, Paris, Karlsruhe, Munich, Pisa and Rome.
Thee search for solutions is turning Paris into a giant construction siteto transform infrastructure and create green neighborhoods, new modes of transportation and many more pedestrian areas.
In June, a Gulfstream G450 owned by Honeywell made the first biofuel-powered transatlantic flight when it flew from New Jersey to Paris using a 50-50 blend of Green Jet fuel in one of its engine.