A re-drawing of the emissions map

The lack of a global carbon pricing mechanism means that efforts to reduce greenhouse gas emissions will remain inherently sub-optimal. Nonetheless, we expect technological improvements and the rollout of renewables to help reduce global emissions over time without hindering economic growth. Whereas we forecast the world economy to be just over twice as big by 2050, our baseline view is that greenhouse gas emissions will fall by about 40% over the same period.