What is a common method used to reduce CO2 emissions?

Burning less gas is an effective method to reduce CO2 emissions because combustion of fossil fuels, such as gasoline and diesel, is a primary source of carbon dioxide in the atmosphere. When less fuel is burned, less CO2 is produced as a byproduct of the combustion process. This approach also generally leads to greater fuel efficiency and promotes the use of alternative energy sources, which can further decrease overall emissions.

By focusing on reducing fuel use, consumers and industries can not only cut their greenhouse gas emissions but also save on costs associated with fuel consumption. This method aligns with various environmental policies aimed at mitigating climate change and encourages practices like carpooling, using public transportation, or transitioning to electric vehicles that ultimately contribute to lower CO2 emissions.

Other methods, while they may have certain benefits, do not directly address the reduction of fuel consumption in the same impactful way. For instance, installing catalytic converters primarily reduces harmful emissions like hydrocarbons and nitrous oxides rather than addressing CO2 emissions specifically. Similarly, synthetic oils can improve engine efficiency and longevity but do not directly lead to lesser fuel use.