Costa Rica aims for a decarbonized economy with net-zero emissions in 2050, in a manner consistent with the long-term goal of limiting the increase of average global temperature to 1.5Â°C above pre- industrial levels. According to the best available science, the adoption of this objective has clear consequences, and a zero-emissions global economy must be reached by mid-century. As such, this would require an advanced level of implementation in order to effectively achieve the main transformational processes by 2050. A "backcasting" approach was applied based on this long-term goal, taking national circumstances into account to identify public policy and action packages that must begin implementation immediately to reach the 2050 target.