I don’t hold with those who want to blame global warming wholly on American industry and American cars. The slashing-burning of hundreds of square miles of Amazon rain forest each day, and the air pollution in Mexico City and Beijing, show the need for a global response.
There are two principal ways human beings can reduce greenhouse gases: (1) covering more land with green plants that will consume carbon dioxide from the air; and (2) reducing our carbon dioxide emissions.
Some simple considerations of architecture address both concerns.
(1) The view from an airplane over any large city finds hundreds of acres of bare roofs that, as they are, only absorb heat from the sun and exacerbate storm water runoff.
Green roofs can cover all that space with plants that will consume that sunlight rather than transmit it to the building below; insulate the building from both heat and…
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