One agreement has been made so far, on carbon markets, but the crucial deal on 'climate cash' for poorer countries is still to come.

By Kate Abnett, Valerie Volcovici and Karin Strohecker BAKU (Reuters) -Developed nations should pay $300 billion a year by 2035 to help poorer countries deal with climate change, according to a new draft deal from U.

The UN’s marathon climate summit neared the finish line early on Sunday, with nations due to approve or reject a hotly-disputed deal for wealthy historic emitters to provide at least US$300 billion to poorer countries that had demanded much more.