https://www.fsinplatform.org/report/global-report-food-crisis-2019/
https://www.brookings.edu/articles/ten-economic-facts-about-electricity-and-the-clean-energy-transition/
http://www.cesifo-group.de/ifoHome/publications/working-papers/CESifoWP/CESifoWPdetails?wp_num=6452&CESifoWP.search=+
http://cep.lse.ac.uk/pubs/download/ea044.pdf