The climate conference in Paris has produced a landmark agreement. The emission reduction commitments made by 195 countries are a leap forward, but not yet sufficient to stay on a 2 °C trajectory, let alone a 1.5 °C pathway. Current commitments address only half the gap between business as usual and the 1.5 °C pathway. There is still a reduction of about 15 billion tonnes CO2e needed to reach the 1.5 °C target. Further solutions are therefore needed; solutions that go beyond decarbonising our energy system. Since over half of the worldwide greenhouse gas emissions are associated with producing basic materials, there is a clear role for circular economy strategies in reducing this gap.