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"I think that livable and sustainable communities is a game changer," said Transportation Secretary Ray LaHood, explaining his "sea change" policy to support biking and walking alongside road projects.

"We know, for example, that Portland has actually reduced its aggregate carbon emissions since 1990 despite growing 18 percent in population, largely due to land-use and transportation strategies that stress infill locations, walkable neighborhoods, and transit-oriented development."

"Eating outside of your home generally requires three things: food, food containers, and food utensils. For the majority of Americans, oil is involved in all three of these components. Food, especially processed food, requires tremendous amounts of oil to grow, process, and transport it. The plastic food containers we use are made from oil. Likewise, the great majority of our disposable forks, spoons, and knives are made from petroleum-based plastics."

"This analysis is interesting because it highlights our lopsided thinking about climate change. The media tends to focus a lot on solutions like hybrid cars and CFLs, but transportation and energy use are relatively small parts of the problem. The stuff we consume accounts for nearly half of the greenhouse gases in an area like Portland. And of that, it's the extraction of raw materials and the manufacturing processes for consumer goods that are the biggest culprits. (Food and long-distance freight are second and third.)"