Costa Rica still bears the scars of environmental damage in the form of the rainforest clearances that spilled over into the 1980s. Trees were felled en-mass in order to create meadows for vast herds of cattle. The policy has now changed: Reforestation efforts are underway and ecological tourism is viewed as a money-spinner. Not everything marked "organic" is treated in ways that lend themselves to the tag. But that will have to change, because Costa Rica has set its sights on being the first country in the world to become carbon neutral. Whether the South American nation can meet the ambitious challenge by its self-imposed target of 2021 will be decided by the Earth University Foundation. Its students test climate protecting energy creation, farming and waste management, and make their findings known.