Democrat Governor of Hawaii, Josh Green, has officially signed the first climate change tax in the U.S. into law.

Labeled a “green fee,” the tax will target tourists on Hawaii Island, requiring them to contribute for their carbon footprint.

Cruise ship passengers will also be included, paying a prorated tax based on how many days their ship is docked at a Hawaiian port.

Set to take effect in January, the law will impose a 0.75% tax on visitors staying in hotels and short-term rentals.