Newly elected Costa Rica President Carlos Alvarado pledged last year that by 2021, the Central American nation will not use any fossil fuels.
Alvarado signed a decree earlier this month to fully decarbonize by the year 2050.
"Decarbonisation is the great task of our generation and Costa Rica must be one of the first countries in the world to accomplish it, if not the first."Costa Rica President Carlos Alvarado
The country already produces 99 percent of its electricity using renewable sources — hydropower, solar, wind, biomass and geothermal.
66 percent of electricity in the United States comes from coal and natural and gas while roughly 15 percent comes from renewable sources.
Costa Rica also has a goal to have a zero-emission public transportation system by 2035.