U.S. Senator Marco Rubio (R-FL) voted to ratify the Kigali Amendment to the Montreal Protocol, which is a global effort to phase down HFCs.
“The United States is already taking common sense steps to reduce HFCs. Ratification of the Kigali Amendment won’t alter U.S. law, but it will have significant benefits for American companies manufacturing and innovating in heating, ventilation, air conditioning, and refrigeration equipment by opening up additional export markets.” — Senator Rubio
In 2018, Rubio joined Senator John Kennedy (R-LA) and 11 other senators in urging President Donald Trump to submit the Kigali Amendment to the Senate for approval. While President Trump did not submit the treaty, he did sign the implementing legislation into law in 2020.