The voluntary carbon market quadrupled in value in 2021
Voluntary carbon market size by value of traded carbon credits, 2005–21 ($m)
0
200
400
600
800
1,000
1,200
1,400
1,600
1,800
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
48
111
359
790
485
444
602
530
339
298
278
199
146
296
320
520
1,985
GlobalData