Consider a household that uses 14,000 kwh of electricity and 900 gal of fuel oil, per year, during a heating season. the average amount of co2 produced is 26.4 lbm/gal of fuel oil and 1.54 lbm/kwh of electricity. if this household reduces its oil and electricity usage by 29 percent by implementing some energy conservation measures, determine the reduction in the amount of co2 emissions by that household per year.