WWF:Alternative Energy Not Only Affordable,Critical for World

摘要

Long known for its programs to help and protect endangered species,the World Wildlife Fund(WWF)has released a study showing that switching to green energy sources is not only practical,but also affordable for the world's economies.A new study by McKinsey and Co.,Pathways to a Low Carbon Economy,looks at more than 200 ways that could be used to cut global greenhouse gas emissions by 40% below 1990 levels hy 2030.