An economist's first choice for lowering industrial pollution is usually a cap-and-trade program.

Key administrative aspects of the regional cap-and-trade program are being implemented in 2012.

Under the system, which operates as a cap-and-trade program, each participating facility is given a certain number of emission rights (the 'cap') for free.

Only SO has been administered under a cap-and-trade program.

The method is like that of the cap-and-trade program for sulfur dioxide emissions created in 1990 to control acid rain.

Its main thrust as of 2008, is to develop a region-wide multi-sector cap-and-trade program.

"It's a much more cost-effective approach," he said of the cap-and-trade program.

Proponents argue that a carbon tax is more easy and simple to enforce on a broad-base scale than cap-and-trade programs.

Implement a cap-and-trade program to help reduce greenhouse gas emissions 80 percent by 2050.

The fact that halibut has returned to restaurant menus in the last decade is a direct result of these cap-and-trade programs.