"Costa Rica demands full compliance with the Paris Agreement as a commitment to the future of our species," said President Luis Guillermo Solís. "I reiterate our unbreakable will regarding global action against climate change."
The Legislative Assembly's approval allows the climate change agreement to become a law in Costa Rica, pending the signing by President Luis Guillermo Solís.
"The Paris agreement could be an exception or could become the norm for multilateral cooperation in the 21st century," Figueres told reporters Thursday.
Costa Rican Christiana Figueres was awarded the Medal of Paris on Wednesday for helping broker the historic, 195-nation deal to avert climate change that was sealed in the French capital last week.
Envoys from 195 nations approved Saturday an accord to stop global warming, offering hope that humanity can avert catastrophic climate change and usher in an energy revolution.
French Foreign Minister Laurent Fabius, on the brink of tears after presiding over nearly a fortnight of talks in Paris, delivered the proposal to ministers who must now decide whether to approve it, possibly within hours.
The French host of U.N. talks aimed at saving mankind from climate catastrophe said Thursday a historic accord was "extremely close," but called for unprecedented compromises during a second night of non-stop negotiations.