Rapid Oxygen Supply Appraisal (ROSA)

ROSA is a method to assert whether or not the rosy view of tropical's forests as lungs of the world and as suppliers of oxygen has any basis. As for other TUL-SEA methods, it has a LEK (Local ecological knowledge), a PEK (Policy/public ecological knowledge), a MEK (Modellers' ecological knowledge) and a Spatial Analysis component, can be done rapidly and at relatively low cost.