The world came together today in yet another milestone on the path toward a safer, more sustainable future. In Kigali, Rwanda, I was proud to help represent the United States as the nearly 200 Parties to the Montreal Protocol agreed to an amendment to phase down the use and production of potent greenhouse gases known as hydrofluorocarbons (HFCs). The Kigali Amendment we adopted could avoid up to half a degree Celsius of warming by the end of the century.

The amendment also amplifies the important message we’ve been sending to industry and the private sector: Entrepreneurs and innovators everywhere can continue to invest in climate solutions with confidence. Nations in every part of the world are committed to changing the course our planet has been on. We are moving toward a more sustainable world – and our pace is quickening.

The Kigali Amendment is just the latest example of the tangible progress the world is making to address climate change. Just last week, the Paris Agreement reached the thresholds to enter into force – the fastest entry into force of a global environmental agreement ever – and we also adopted a measure aimed at carbon neutral growth in the international aviation sector.

It hasn’t been easy to get to this point – and the hard work is far from over. Climate change is a massive challenge, and it will take intense diplomacy, continued innovation, and real persistence to prevail. But in the end, we are all in this together. And our children, our grandchildren, and every one of us will be better off for what the Parties to the Montreal Protocol achieved today.