The World Wildlife Fund (WWF) issued a report yesterday highlighting the top ten countries that invested the most in clean energy technology for 2011. The report shows that China continues to lead the world in clean energy technology manufacturing and investing. The U.S. took second place. The report also ranked countries on clean energy tech sales as a proportion of their total economy. In that report Denmark took the top spot, with the U.S. lagging in the 15th spot. The WWF criticized the U.S. in their press release saying, “Other countries are moving on clean technology opportunities and making big investments in the industry, while U.S. policymakers in Washington seem to be content to let all the recent growth in the U.S. wither on the vine by not providing policy certainty and not going after growth opportunities.” The report found that U.S. clean tech manufacturing sales increased by 17 percent between 2010 and 2011, but notes that this pace is slower than the 28 percent seen between 2008 and 2010. Besides the WWF report the U.N. recently announced that 2011 was a record year for global renewable energy investment. $257 billion was invested in 2011, with $147 billion of that going toward solar energy, according to the U.N. Environment Program report. $51 billion, or nearly 20 percent of global investment, came from the U.S. The top ten countries in the WWF report are: China, U.S., Germany, Japan, Brazil, Denmark, Spain, South Korea, India, and France.