Emissions of heat-trapping carbon dioxide (CO2) reached an all-time high of 31.6 gigatons in 2011, a 3.2% increase over 2010. The International Energy Agency said this further reduces the chance that the world can avoid a dangerous rise in global increase temperature by 2020.
If the discharge increase continues at the same 3.2% rate per year for the next 9 years, how many gigatons will be release in 2020?
What will be the total percent increase between 2011 and 2020?