Costa Rica

Critically Insufficient4°C+ World

NDCs with this rating fall well outside of a country’s “fair share” range and are not at all consistent with holding warming to below 2°C let alone with the Paris Agreement’s stronger 1.5°C limit. If all government NDCs were in this range, warming would exceed 4°C.

Highly insufficient< 4°C World

NDCs with this rating fall outside of a country’s “fair share” range and are not at all consistent with holding warming to below 2°C let alone with the Paris Agreement’s stronger 1.5°C limit. If all government NDCs were in this range, warming would reach between 3°C and 4°C.

Insufficient< 3°C World

NDCs with this rating are in the least stringent part of a country’s “fair share” range and not consistent with holding warming below 2°C let alone with the Paris Agreement’s stronger 1.5°C limit. If all government NDCs were in this range, warming would reach over 2°C and up to 3°C.

2°C Compatible< 2°C World

NDCs with this rating are consistent with the 2009 Copenhagen 2°C goal and therefore fall within a country’s “fair share” range, but are not fully consistent with the Paris Agreement long term temperature goal. If all government NDCs were in this range, warming could be held below, but not well below, 2°C and still be too high to be consistent with the Paris Agreement 1.5°C limit.

1.5°C Paris Agreement Compatible< 1.5°C World

This rating indicates that a government’s NDCs in the most stringent part of its “fair share” range: it is consistent with the Paris Agreement’s 1.5°C limit.

Role model<< 1.5°C World

This rating indicates that a government’s NDC is more ambitious than what is considered a “fair” contribution: it is more than consistent with the Paris Agreement’s 1.5°C limit.

We rate Costa Rica’s 2030 NDC target as “2°C compatible”. The “2°C compatible” rating indicates that Costa Rica’s climate commitment in 2030 is within the range of what is considered to be a fair share of global effort but is not consistent with the Paris Agreement. This approach requires other countries to make deeper reductions and comparably greater effort to limit warming to 1.5°C. If all countries were to follow Costa Rica’s approach, warming could be held below—but not well below—2°C, and hence would still be too high to be consistent with the Paris Agreement’s 1.5°C temperature limit. The 2°C compatible category refers to the 2°C goal adopted by the Copenhagen Agreement in 2009, now replaced by the 1.5 ̊C limit in the Paris Agreement, providing a historical reference point and bridge to the Paris Agreement compatible category rating.

Costa Rica’s long-term goal of net-zero emissions in 2050 stated in the National Decarbonisation Plan is very close to our “1.5 Paris Agreement compatible” range. If Costa Rica were to update its NDC in line with its National Decarbonisation Plan, we would rate it “1.5°C Paris Agreement compatible.” The “1.5°C Paris Agreement compatible” rating indicates that Costa Rica’s climate commitment in 2050 is consistent with holding warming well below 2°C, and limiting warming to 1.5°C. Costa Rica’s commitment does not require other countries to make comparably deeper reductions or greater effort, and is in the most stringent part of its Fair Share range.

The CAT ratings are based on climate commitments in NDCs. If the CAT were to rate Costa Rica’s projected emissions levels in 2030 under current policies, we would rate Costa Rica “2°C compatible,” indicating that Costa Rica’s current policies in 2030 are within the range of what is considered to be a fair share of global effort but is not consistent with the Paris Agreement.

Further information about the risks and impacts associated with the temperature levels of each of the categories.