This document discusses Nature Air's efforts to become carbon neutral through a case study of their operations in Costa Rica. Some key points: 1) Nature Air implemented various sustainability initiatives like improving fuel efficiency, using biofuels, and investing in renewable energy to reduce their direct emissions. 2) They offset remaining emissions by supporting forestry projects through Costa Rica's government fund FONAFIFO, which provides social and environmental benefits. 3) Nature Air's success encouraged other Costa Rican tourism companies to follow their lead in taking action on climate change.