Costa Rica launched a plan this week to fully decarbonize the country by 2050, setting a goal of powering its electrical grid entirely with renewables by 2030 and aiming to aggressively increase the use of electric vehicles and buses. President Carlos Alvarado signed a decree Sunday laying out a roadmap with key targets in the transportation, industry, waste management, and agriculture industries to achieve zero net emissions, and on Monday extended the country’s moratorium on oil exploration through 2050. Costa Rica’s plan is "unprecedented" in terms of what other countries are doing to transition off fossil fuels, former UN climate chief Christiana Figueres explained to Thomson Reuters. More than 95 percent of the country’s electricity has come from renewable sources for the past four years. For a deeper dive: For more climate change and clean energy news, you can follow Climate Nexus on Twitter and Facebook , and sign up for daily Hot News .