We haven't been promised any specific reduction in global warming pollution, or any specific increase in the efficiency in cars.

The company's goal is to cut global warming pollution and energy costs simultaneously, thereby providing an economical approach to mitigating climate change.

Learn about global warming, pollution and other impacts on nature and the planet, plus what we can do to combat them.

"It's disturbing that despite high gas prices, an oil war and growing concern about global warming pollution, most automakers are failing to improve fuel economy."

A report on Providence's efforts to reduce global warming pollution and to position Providence as a leader in the rapidly growing green economy.

We are writing," it complained, "to voice deep disappointment with the lack of an Administration proposal to require significant reductions in global warming pollution.

"This administration has put no limit on global warming pollution and has consistently rebuffed any suggestion to do so," he said.

To the Editor: The potential of diesel technology to reduce global warming pollution and deliver more efficient automobiles should not be overestimated (front page, May 27).

Reduce global warming pollution at least 25% below current levels by 2020, and at least 80% by 2050, in line with the best science available.

Re-power America by imposing a moratorium on new coal plants that emit global warming pollution and replacing dirty fuels with 100% renewable energy.