US oil major ConocoPhillips has become the first US oil company to support publicly mandatory caps on emissions. Here is the company’s press-release:
“HOUSTON, April 11, 2007 — ConocoPhillips [NYSE:COP] today announced its support for a mandatory national framework to address greenhouse gas emissions and has joined the U.S. Climate Action Partnership (USCAP), a [...]

The Financial Times “undercover economist”, Tim Harford, reports on the differences between emissions trading schemes and carbon taxes, in this article. He declares in favour of a tax, since a tax may be more readily altered than a trading scheme, as circumstances change.
“The uncertainty about next year’s emissions is not very [...]