|Even the Ritz in Paris has revolving doors...|
Yes, it's a small thing. But it's an IMPORTANT small thing. USE THE REVOLVING DOORS, PEOPLE!!!
"How big a difference can using a revolving door make? In 2006, a team of graduate students at MIT conducted an analysis of door use in one building on campus, E25, where they found just 23 percent of visitors used the revolving doors. According to their calculations, the swinging door allowed as much as eight times more air to pass through the building than the revolving door. Applying average Boston weather to their equations, the MIT team found that if everyone used the revolving doors, it would save more than 75,000 kilowatt-hours of energy—about 1.5 percent of the total required to heat and cool the building—and prevent 14.6 tons of carbon dioxide from being emitted. * (By way of comparison, the EPA says an average American vehicle emits about six tons of carbon dioxide over a year.) The gains are also big enough that they could easily cover the energy needed to power an automatic revolving door, which has a 250-watt motor." Slate - July 29, 2008
Every day, I see dozens of people walk PAST the revolving doors and pull open the swinging doors. Young, healthy people who claim to be friends of the environment.