what are the main human produced gases that cause climate change?
<answer> Carbon dioxide (CO2), methane (CH4), and nitrous oxide (NO2). <context> Rising levels of human-produced gases released into the atmosphere create a greenhouse effect that traps heat and causes global warming. As sunlight hits the earth, some of the warmth is absorbed by greenhouse gases in the atmosphere such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (NO2).