Total emissions of carbon dioxide from the burning of fossil fuels have been increasing at about 6% per year (data from 2010 to 2011). If emissions continue to increase at this rate, about how much higher will total emissions be in 2030 than in 2010? COTE Using the approximate formula, emissions will increase by a factor of between 2010 and 2030. Using the exact formula, emissions will increase by a factor of between 2010 and 2030. (Round to two decimal places as needed.)