Lindsey Graham, Joseph Lieberman, and John Kerry each sought a kind of redemption through climate-change legislation.

No previous climate-change legislation had come so far.

Kerry, Graham, and Lieberman knew that Obama's advisers disagreed about climate-change legislation.

To add excitement, the man of the moment, Senator Barack Obama, Democrat of Illinois, lent his name to the best-known brand in climate-change legislation, a measure by Senators John McCain, Republican of Arizona, and Joseph I. Lieberman, independent of Connecticut.

This week in the magazine, Ryan Lizza writes about the failure of climate-change legislation this year.

The Center is also producing analyses showing that climate-change legislation can generate enough revenue not only to protect low-income families, but also to address other needs related to the fight against global warming without increasing the deficit.

Several environmental leaders said the court decision could persuade still other states to pass climate-change legislation.

Elizabeth Kolbert commented on the obstacles facing climate-change legislation.

Ryan Lizza and Robert Stavins, the director of the environmental economics program at Harvard, on the Senate's surprising new push for climate-change legislation.