Click here to write a Letter to the Editor. UNIVERSAL CITY, Calif. — An official with the Chicago Climate Exchange said the demand for cleaner engines and alternative fuels in the United States will increase as membership in its cap-and-trade emission trading system expands. The for-profit exchange calls itself the world’s first — and North America’s only — voluntary, legally binding greenhouse gas reduction and trading system.Thomas Cushing, vice president of business development for the exchange, said its creation in 2003 signified “the dawning of a new age” in cutting greenhouse gases by “using the power of the markets to address global warming.”For the full story, see the Feb. 26 print edition of Transport Topics. Subscribe today.