US$263 billion. This was the amount of money invested in alternative energy in 2011, according to research by The Pew Charitable Trusts. One of the findings of the research is that the US is once again the leader of the clean energy race, having...
US$263 billion. This was the amount of money invested in alternative energy in 2011, according to research by The Pew Charitable Trusts. One of the findings of the research is that the US is once again the leader of the clean energy race, having...