The peak year for coal consumption in China will be 2020 -- that's what most analysts believed.
But according to a jointly-authored paper by economists from both China and the UK, published in the Nature Geoscience journal, Professor Qi Ye from China and Professor Nicholas Stern from the UK have a different opinion.
In their paper, they say China's coal consumption may have peaked in 2013-2014.
Professor Qi Ye with Tsinghua University explains the study.
"2013, coal consumption [in China] reached 4.3 billion tons, and 2014, coal consumption decreased by 2.9 percent, and 2015, there is additional 3.5 percent decrease in coal consumption.&quo
