THIS PROJECT DETAILS THE GREEN UTOPIAN FUTURES OF THOUSANDS OF REAL WORLD CITIES ACROSS THE GLOBE -- 100 YEARS FROM NOW. THIS WEEK, WE FEATURE THE FUTURE OF THE SOUTH AMERICAN CITY OF SANTIEGO. Santiago is a city of five million at the foot of the Chilean Andes. Just outside the city limits is a copper mine. The mine releases a slow trickle of sulfuric acid and arsenic into the outer neighborhoods of Santiago. The residents have kicked up a fuss for years, saying this toxic s