Global CO2 annual growth (ppm/year) ----------------------------------- Year 12-month mean ----------------------------------- 1981.500 1.19583 1981.583 1.15750 1981.667 1.13250 1981.750 1.05333 1981.833 0.98250 1981.917 0.98083 1982.000 1.00500 1982.083 0.98833 1982.167 0.92500 1982.250 0.86750 1982.333 0.81083 1982.417 0.77500 1982.500 0.77167 1982.583 0.75667 1982.667 0.72250 1982.750 0.71750 1982.833 0.72833 1982.917 0.76917 1983.000 0.86167 1983.083 1.01500 1983.167 1.22000 1983.250 1.40000 1983.333 1.53083 1983.417 1.62000 1983.500 1.67500 1983.583 1.75417 1983.667 1.86250 1983.750 1.95667 1983.833 2.01417 1983.917 2.01667 1984.000 1.93667 1984.083 1.82417 1984.167 1.74500 1984.250 1.67833 1984.333 1.60333 1984.417 1.56000 1984.500 1.54500 1984.583 1.47000 1984.667 1.37750 1984.750 1.35750 1984.833 1.36333 1984.917 1.35833 1985.000 1.41250 1985.083 1.47083 1985.167 1.44250 1985.250 1.41583 1985.333 1.45000 1985.417 1.47167 1985.500 1.47167 1985.583 1.52917 1985.667 1.57417 1985.750 1.52167 1985.833 1.48333 1985.917 1.49250 1986.000 1.47417 1986.083 1.44083 1986.167 1.45917 1986.250 1.47583 1986.333 1.45417 1986.417 1.44750 1986.500 1.42167 1986.583 1.35250 1986.667 1.32917 1986.750 1.37333 1986.833 1.41250 1986.917 1.44500 1987.000 1.46500 1987.083 1.48750 1987.167 1.51250 1987.250 1.54750 1987.333 1.59500 1987.417 1.63167 1987.500 1.73667 1987.583 1.90667 1987.667 2.05000 1987.750 2.13500 1987.833 2.18583 1987.917 2.21250 1988.000 2.26417 1988.083 2.33250 1988.167 2.39250 1988.250 2.45500 1988.333 2.50333 1988.417 2.54167 1988.500 2.52917 1988.583 2.46333 1988.667 2.38833 1988.750 2.35667 1988.833 2.33917 1988.917 2.30083 1989.000 2.23333 1989.083 2.13917 1989.167 2.02583 1989.250 1.91083 1989.333 1.81250 1989.417 1.72333 1989.500 1.64250 1989.583 1.57583 1989.667 1.51167 1989.750 1.41333 1989.833 1.31500 1989.917 1.25500 1990.000 1.20583 1990.083 1.18417 1990.167 1.20000 1990.250 1.19500 1990.333 1.18917 1990.417 1.18917 1990.500 1.18000 1990.583 1.17250 1990.667 1.17333 1990.750 1.20667 1990.833 1.26000 1990.917 1.31167 1991.000 1.38583 1991.083 1.44917 1991.167 1.46167 1991.250 1.45583 1991.333 1.41500 1991.417 1.36167 1991.500 1.32083 1991.583 1.27833 1991.667 1.23000 1991.750 1.16083 1991.833 1.07833 1991.917 0.99667 1992.000 0.90167 1992.083 0.80500 1992.167 0.73500 1992.250 0.69667 1992.333 0.69667 1992.417 0.70417 1992.500 0.70583 1992.583 0.69750 1992.667 0.68833 1992.750 0.69167 1992.833 0.69250 1992.917 0.67417 1993.000 0.65250 1993.083 0.64250 1993.167 0.65333 1993.250 0.67000 1993.333 0.67750 1993.417 0.69000 1993.500 0.71583 1993.583 0.76583 1993.667 0.83667 1993.750 0.89833 1993.833 0.95167 1993.917 1.02500 1994.000 1.11000 1994.083 1.19417 1994.167 1.26667 1994.250 1.32417 1994.333 1.37833 1994.417 1.44333 1994.500 1.49583 1994.583 1.52917 1994.667 1.54000 1994.750 1.56667 1994.833 1.61333 1994.917 1.64167 1995.000 1.66917 1995.083 1.68083 1995.167 1.68000 1995.250 1.71750 1995.333 1.76917 1995.417 1.79500 1995.500 1.82250 1995.583 1.85000 1995.667 1.87500 1995.750 1.87583 1995.833 1.85500 1995.917 1.86250 1996.000 1.90167 1996.083 1.97750 1996.167 2.04000 1996.250 2.01083 1996.333 1.93333 1996.417 1.84667 1996.500 1.75917 1996.583 1.68833 1996.667 1.62750 1996.750 1.58333 1996.833 1.56250 1996.917 1.51500 1997.000 1.38917 1997.083 1.20500 1997.167 1.03833 1997.250 0.96083 1997.333 0.96417 1997.417 1.03250 1997.500 1.11750 1997.583 1.18417 1997.667 1.24833 1997.750 1.31083 1997.833 1.37167 1997.917 1.46250 1998.000 1.61917 1998.083 1.82667 1998.167 2.07583 1998.250 2.31500 1998.333 2.49000 1998.417 2.58417 1998.500 2.64667 1998.583 2.72500 1998.667 2.80583 1998.750 2.88583 1998.833 2.93917 1998.917 2.93833 1999.000 2.89250 1999.083 2.80750 1999.167 2.65583 1999.250 2.47417 1999.333 2.31167 1999.417 2.18750 1999.500 2.07667 1999.583 1.94167 1999.667 1.79333 1999.750 1.63833 1999.833 1.50000 1999.917 1.39417 2000.000 1.30250 2000.083 1.25333 2000.167 1.24750 2000.250 1.23750 2000.333 1.21833 2000.417 1.19833 2000.500 1.17833 2000.583 1.18167 2000.667 1.21667 2000.750 1.26417 2000.833 1.30583 2000.917 1.34667 2001.000 1.39000 2001.083 1.40917 2001.167 1.41500 2001.250 1.44417 2001.333 1.49333 2001.417 1.53750 2001.500 1.59333 2001.583 1.63667 2001.667 1.65250 2001.750 1.66833 2001.833 1.69167 2001.917 1.72250 2002.000 1.76333 2002.083 1.80333 2002.167 1.84667 2002.250 1.90333 2002.333 1.94167 2002.417 1.98167 2002.500 2.01750 2002.583 2.07083 2002.667 2.14083 2002.750 2.20000 2002.833 2.26833 2002.917 2.34250 2003.000 2.41333 2003.083 2.47667 2003.167 2.51750 2003.250 2.52417 2003.333 2.53917 2003.417 2.55083 2003.500 2.54667 2003.583 2.52750 2003.667 2.49917 2003.750 2.47500 2003.833 2.42917 2003.917 2.35417 2004.000 2.27250 2004.083 2.19833 2004.167 2.12083 2004.250 2.03000 2004.333 1.94083 2004.417 1.87000 2004.500 1.81917 2004.583 1.76000 2004.667 1.70417 2004.750 1.66333 2004.833 1.64333 2004.917 1.65500 2005.000 1.67417 2005.083 1.68417 2005.167 1.73333 2005.250 1.82000 2005.333 1.90083 2005.417 1.96667 2005.500 2.02667 2005.583 2.11250 2005.667 2.20167 2005.750 2.25750 2005.833 2.29333 2005.917 2.30167 2006.000 2.30250 2006.083 2.31417 2006.167 2.27667 2006.250 2.23417 2006.333 2.20417 2006.417 2.16583 2006.500 2.12167 2006.583 2.05250 2006.667 1.96583 2006.750 1.90417 2006.833 1.84583 2006.917 1.79250 2007.000 1.74417 2007.083 1.69250 2007.167 1.69417 2007.250 1.71000 2007.333 1.71500 2007.417 1.72583 2007.500 1.74333 2007.583 1.78083 2007.667 1.83000 2007.750 1.86667 2007.833 1.92167 2007.917 1.99167 2008.000 2.05417 2008.083 2.13917 2008.167 2.19667 2008.250 2.18167 2008.333 2.14417 2008.417 2.12167 2008.500 2.10167 2008.583 2.07250 2008.667 2.03833 2008.750 1.99583 2008.833 1.93167 2008.917 1.86000 2009.000 1.78750 2009.083 1.65750 2009.167 1.52667 2009.250 1.49083 2009.333 1.51417 2009.417 1.52250 2009.500 1.50750 2009.583 1.49083 2009.667 1.50000 2009.750 1.53250 2009.833 1.57583 2009.917 1.62000 2010.000 1.67500 2010.083 1.79333 2010.167 1.93750 2010.250 2.05083 2010.333 2.12833 2010.417 2.20083 2010.500 2.27917 2010.583 2.33750 2010.667 2.34833 2010.750 2.34750 2010.833 2.35333 2010.917 2.36333 2011.000 2.37000 2011.083 2.32667 2011.167 2.24417 2011.250 2.14333 2011.333 2.04500 2011.417 1.95417 2011.500 1.87917 2011.583 1.82500 2011.667 1.81167 2011.750 1.81917 2011.833 1.81000 2011.917 1.78333 2012.000 1.74583 2012.083 1.74250 2012.167 1.77500 2012.250 1.83500 2012.333 1.89417 2012.417 1.95583 2012.500 2.01083 2012.583 2.07583 2012.667 2.12917 2012.750 2.16833 2012.833 2.23167 2012.917 2.31833 2013.000 2.43667 2013.083 2.57583 2013.167 2.68750 2013.250 2.71750 2013.333 2.72000 2013.417 2.72417 2013.500 2.73667 2013.583 2.73333 2013.667 2.71250 2013.750 2.66417 2013.833 2.59333 2013.917 2.51667 2014.000 2.40417 2014.083 2.25167 2014.167 2.11750 2014.250 2.05333 2014.333 2.01167 2014.417 1.96833 2014.500 1.92583 2014.583 1.89417 2014.667 1.88500 2014.750 1.91083 2014.833 1.94667 2014.917 1.96750 2015.000 2.01083 2015.083 2.05833 2015.167 2.08333 2015.250 2.11500 2015.333 2.16583 2015.417 2.22000 2015.500 2.29250 2015.583 2.38083 2015.667 2.46583 2015.750 2.55000 2015.833 2.64333 2015.917 2.75750 2016.000 2.86917 2016.083 3.00083 2016.167 3.14500 2016.250 3.25667 2016.333 3.35083 2016.417 3.42667 2016.500 3.44500 2016.583 3.42083 2016.667 3.39083 2016.750 3.32333 -----------------------------------