On my short visit to Paris last month, I heard about the city’s next step in its ongoing urban sustainability project, but never got to see the participants first-hand. Along with the wildly popular Velib bike sharing system, Paris is now introducing a pilot program called “eco-grazing” to reduce the dependence on mechanical lawnmowers. With the introduction of a small herd of Breton Ouessant sheep at the Municipal Archives in the 19th arrondissement, Mayor Bertrand Delanoë hopes to build an image of Paris as a green city.