Grand ideas for a greener world

Environmentalism is often an expendable cause to a majority that fears economic oppression by a minority with delusions of saving the earth. But we need not take sides. From corporations striving to harness massive wind power along the Atlantic Coast, to the Herculean trash collectors of the Pacific; from a cross-country initiative to save the vibrant Mekong river basin, to modern China embarking on another, greener Great Wall, five exciting and ambitious projects show how all of us have an incentive to shape the future rather than fight it