Costa Rica: Carbon-Neutral by 2021? Can ignoring pollution be off-set by planting trees?
Costa Rica aims to cut its net greenhouse gas emissions to zero by 2021 in a push to make the Central American nation the first on Earth to offset all its carbon. Costa Rican President Oscar Arias, jockeying for a global leadership role on climate change, was one of five keynote speakers to address the UN Climate Change Summit on Sept. 22, 2009 calling on the world to shift military spending to fight global warming — to “save our species from the real enemy.” But while Arias wins kudos …










































