London — Trading platform provider Global Environmental Markets is set to launch an emissions registry that aims to allow trading of emissions under the Paris Agreement.

The platform could allow governments to start to trade emissions reductions before the final rules are agreed under the UN Framework Convention on Climate Change.

Unveiling the system at the COP25 climate talks in Madrid, running December 2-13, the registry “demonstrated the importance of sovereign governments having access to software infrastructure if they are to make the most of the $300-billion opportunity in international carbon trading between 2020 and 2030,” the company said in a statement Tuesday.