February 11, 2008 · Costa Rica ranks among the greenest countries on earth. It promotes eco-tourism, operates vast national parks, and is working to become the first carbon-neutral country. Perhaps most impressive, the nation produces more than 80 percent of its electricity in hydroelectric plants, which emit no greenhouse gases.But Costa Rica's efforts to minimize its own contributions to global warming have made it especially vulnerable to climate changes caused by other countries.
The reason is rain. Even a tiny shift in rainfall patterns could leave the country without enough water to meet its growing demand for electricity. And scientists say climate change is likely to have a significant effect on rainfall. More >>>
