The latest deadline for countries to submit plans for slashing the greenhouse gas emissions fuelling climate change has passed. Only 15 countries met it – less than 8% of the 194 parties currently signed up to the Paris agreement, which obliges countries to submit new proposals for eliminating emissions every five years.
Known as nationally determined contributions, or NDCs, these plans outline how each country intends to help limit average global temperature rise to 1.5°C above pre-industrial levels, or at most 2°C. This might include cutting emissions by generating more energy from wind and solar, or adapting to a heating world by restoring wetlands as protection against more severe floods and wildfires.
Each new NDC should outline more stringent emissions cuts than the last. It should also show how each country seeks to mitigate climate change over the following ten years. This system is designed to progressively strengthen (or “ratchet up”) global efforts to combat climate change.

