China
China surpassed the United States last year as the country with the most clean energy investment. China's clean energy investments were $34.6 billion, compared with U.S.A.'s $18.6 billion last year. The US still leads the world in installed renewable energy, with 52.2 gigawatts of wind energy, small hydroelectric, biomass and waste generating capacity, per a report by the nonprofit Pew Charitable Trusts, but has dropped below ten other countries, including Canada and Mexico in investments as a share of the national economy.
Sources: Business Times China Daily L.A. Times The China Post