Under the thunder and exhaust of jet engines, lights at a soon-to-be-built Denver International Airport parking lot will run on solar power. The pavement will be made porous to prevent the toxic run-off common at most lots. Shuttle vans using alternative fuels will whisk passengers from the lots surrounded by natural landscape to the terminal. Such ideas and others would combine to make the new lot the "world's greenest parking facility ," claims the project's backer, Greenscape Capital Group, a Vancouver, British Columbia, firm. As Portfolio  points out, "It's like planting wildflowers beside highways; or running hybrid buses in the exhaust-choked canyons of Chicago or Manhattan; or building super-energy-efficient buildings in smog-shrouded Los Angeles. In other words, at least it's something." Greenscape aims to construct the 4,200-space lot, dubbed "GreenPark DIA," as an environmental prototype and business model for similar projects at other airports. The $32 million project will adhere to the LEEDs Gold standard of the U.S. Green Building Council, notes Environmental Leader .