With a schedule of declining caps on emissions as the law of the land, entrepreneurs in firms large and small will know there is a growing market for clean energy innovations. (grist.org)
A steadily declining cap on emissions from large, energy intensive industries to 10 percent or less of 1990 emissions by 2050. (ieer.org)
Test case: passing a mandatory declining cap on carbon, which is not «the solution,» by any means, but would be a crucially important step. (dotearth.blogs.nytimes.com)