When the global community ratified the Paris Agreement four years ago, its goal was to hold global warming well below 2°C and to pursue efforts to limit it to 1.5°C above pre-industrial levels. Yet global greenhouse emissions in the ensuing years have continued to hit record levels. To put it bluntly, the climate measures taken so far have been woefully inadequate, and the Paris targets risk slipping out of reach.
This study identifies how quickly emissions must fall for the Paris climate targets to be achievable. Further reductions for 2030 represent an immense challenge, especially in the transport sector, whose emission levels have changed little since 1990.