# IPCC, 2013: Climate Change 2013 -- Physical Science Basis.
# Annex II. Climate System Scenario Tables.
# AII.4 Abundances of the Well-Mixed Greenhouse Gases
# Table AII.4.1 CO2 abundance (ppm)
# (p. 1422)
year  RCP2_6  RCP4_5  RCP6_0  RCP8_5
2000  368.9   368.9   368.9   368.9
2010  389.3   389.1   389.1   389.3
2020  412.1   411.1   409.4   415.8
2030  430.8   435.0   428.9   448.8
2040  440.2   460.8   450.7   489.4
2050  442.7   486.5   477.7   540.5
2060  441.7   508.9   510.6   603.5
2070  437.5   524.3   549.8   677.1
2080  431.6   531.1   594.3   758.2
2090  426.0   533.7   635.6   844.8
2100  420.9   538.4   669.7   935.9