In 2015, more than 190 nations and many thousands of non-state actors jointly resolved to safeguard and strengthen the social, environmental and economic fabric of life on our shared planet. Together we committed to manifesting a more prosperous, resilient and equitable world in 2030, and set a 1.5-2°C temperature rise limit, which fundamentally underpins this better world.

We must now act with great urgency to fulfill our shared commitment. If we are to be successful, greenhouse gas emissions must begin their steady decline by 2020. Bending the curve of emissions any later will all but eliminate our chance to stay within 1.5°C and move the 2030 Sustainable Development Goals beyond our reach. Given the stakes, failure is simply not an option.