US climate pledge promises to push for maximum ambition

The US has set out its contribution to a new international climate change agreement, due to be agreed in Paris this December. Analysis by Climate Action Tracker suggests the US pledge is not consistent with a two degrees path and can only be considered a “fair share” of action if the cost of reducing US emissions is high in global terms. To make the pledge compatible with a two degrees pathway, other countries would need to make more ambitious efforts than the US.