In order to soften our main environmental impacts, we need to find ways, globally, to

at the individual level, a meaningful response to environmental challenges consists of choices about what he calls “personal infrastructure”: “Which car? Which house? Which job (physical location in relation to the house)? Which large appliances? Which HVAC system? Which diet (vegetarian/omnivore)?

Most energy-storage systems have round-trip efficiency of about 80 percent, meaning that you lose 20 percent as you store the energy and then retrieve it.

The only clearly, unambiguously effective method of reducing the carbon and energy footprints of air travel is to fly less—a behavioral change, not a technological one.

Global Environmental Enemy No. 1 is the automobile, no matter what it runs on.

Dense, efficient, intelligently organized cities are the future of the human race, and they provide the only remotely plausible template for permanently housing large populations.

The environmental problem with mobility isn’t miles per gallon; it’s miles.

How do we truly begin to think about less—less fossil fuel, less carbon, less water, less waste, less habitat destruction, less population stress—when

Every plan for shrinking production of greenhouse gases (other than directly reducing consumption) involves the construction of vast amounts of new infrastructure for generating and distributing energy, as well as manufacturing huge quantities of “sustainable” products to consume the energy thus produced—and all that new construction and manufactur