Knowing that greenhouse gases are contributing to climate change, how can we reduce our carbon footprint, particularly in the united states? could hydrogen fuel replace fossil fuels in the future? why or why not? should the size of a person’s carbon footprint be limited by law? why or why not? no response(s) new response to topic be the first to respond to the discussion topic!

You can reduce our carbon footprints by using renewable energy , calculate your carbon footprint and make changes , use car less and minimize driving and walk or cycle more and reduce water use. Hydrogen fuel can not replace fossil fuels this is because fossil fuel use more energy and make more pollution.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

not too sure thinking all accelerations are pointed down