How does this relate to agriculture?
An increase in carbon dioxide could increase the yield of crops and quicken the growth of other vegetation like pastures and forests. However, in many global warming scenarios, the Southeast is expected to receive less rainfall and so that could limit the effects of fertilization by CO2 in a globally-warmed world. You can reduce your emission of carbon dioxide by driving fuel-efficient vehicles and conserving electricity and fuel. These actions will also reduce our dependence on foreign oil and cut your own heating and transportation costs. Using cropping techniques that preserve more natural vegetation and minimize extensive bare soils will also help reduce the releasing of CO2 to the atmosphere and encourage uptake of carbon dioxide by plants.