Have global emissions peaked?

By Rachel Dobbs, Environment editor, The Economist

HAVE GLOBAL emissions of greenhouse gases passed their peak? It is entirely possible. The world will find out, one way or another, in 2025. Passing the peak would be a significant moment in the fight against climate change. In its most recent assessment report, the Intergovernmental Panel on Climate Change, the UN body that monitors climate science, said 2025 was the year by which greenhouse-gas emissions must peak if the world is to have a good chance of keeping global temperature rises within the 1.5-2°C limits specified by the Paris climate agreement.