Climate change is real and there are many natural processes that have caused severe changes over millions of years. Fertile land has transformed into deserts; some dry lands today were at one time under water and many places covered by water currently were dry lands. 'We the People' are not the cause of climate change but many of our activities are compromising the natural control processes of the Human Environment Systems: energy production and use; agriculture and land use; deforestation, prolific lifestyles that leave large carbon footprints. The pressure is on governments worldwide to mitigate climate change but 'We the People' hold the ace: we use most of energy and consume most of the products of agriculture, and our excesses are fueling demand for even more energy; we fund the energy companies through our stocks and share investments and can moderate their excesses; we elect the politicians and can influence their policies; and, through mass actions, we have surmounted governments in many places or forced changes in policies; we have the formidable weapon of the social media to effect change without stepping out. The Climate Change Mitigation Movement is already in motion but 'We the People' also need to moderate our choices and lifestyles in order to move the world to carbon neutrality which is a prerequisite for a sustainable environment.