OK, so that’s a bit of an exaggeration. But <a href=”http://cityroom.blogs.nytimes.com/2009/05/14/hospitals-vow-to-curb-carbon-emissions/-36053″>Mayor Bloomberg wants carbon cuts from the city’s hospitals:

Hospitals use a lot of power. The lights in emergency rooms burn around the clock. Outlets in the laboratories are taxed by computers, refrigerators and high-tech medical equipment. The air must be kept fresh and frosty to prevent the spread of germs, leaving air-conditioning and ventilation units on permanent overdrive.
All together, New York City hospitals are responsible for about 1.5 percent of the city’s total greenhouse gas emissions, city officials say, pumping them out at more than double the rate for a commercial office building. Energy is the second only to salaries in cost for hospitals, according to the Greater New York Hospital Association.
On Thursday, representatives from about 13 hospital systems with 35 hospitals in the city pledged to reduce that carbon footprint, cutting their share of greenhouse gas emissions by 30 percent over the next 10 years. In doing so they join Broadway theaters and city universities on a growing list of local institutions assisting the city in meeting its greenhouse gas reduction targets.
Mayor Michael R. Bloomberg has been lobbying city institutions to agree to the reduction in greenhouse gases by the more ambitious 10-year deadline of 2017 being used for government operations, rather than the citywide 2030 deadline laid out in PlaNYC, the 127-point vision for an environmentally friendly New York.

At least someone interviewed by the NY Times, however, owns a calculator and gives an honest answer on this scheme:

While a majority of hospitals in New York City signed up, many declined saying that the short-term cost was too great, even with the prospect of savings down the road.
“It is resource intensive and some facilities are struggling with the current fiscal situation,” said Alison Burke, an associate vice president with the Greater New York Hospital Association.