Global trends in clean energy investment.

https://data.bloomberglp.com/bnef/sites/14/2017/01/BNEF-Clean-energy-investment-Q4-2016-factpack.pdf?elqTrackId=58d5a60c90ec43d0a57a88a12bcde9cc&elq=7f87228565aa4ca384dc5af135097d92&elqaid=6150&elqat=1&elqCampaignId