Canada pledged internationally to meet its commitment on the Kyoto Protocol, which was supposed to be legally binding.

BBC: Canada wins few friends on climate

In Doha, governments are expected to usher in a renewed commitment under the Kyoto Protocol, move the broad infrastructure of support they have been building for action in the developing world into firm implementation, and decide how to resolve policy issues that remain outstanding under the UN Climate Change Convention.

UNESCO: Basic Sciences

This is a remarkable success since developing countries did not take on any reduction targets under the first commitment period of the Kyoto Protocol.

CNN: Your ask the expert: Carbon trading, part 2

The governments that fell down on the job of upholding the Geneva Protocol then strove to demonstrate their commitment to arms control by agreeing upon an unverifiable ban on possession of chemical weapons.

CENTERFORSECURITYPOLICY: Chemical Reaction

But it is a choice about their own identity and about signing up to a European view on the world - whether it's the Kyoto protocol or whether it's the international criminal court or whether it's a commitment to working through the UN and through multilateral institutions whenever possible.

BBC: Breakfast with Frost