And if you are aware of this, says Van de Broek, taking action is a logical next step. For example, by eating less meat. And according to the psychologist, this not only reduces your own CO2 emissions. “People often do not realize how much influence their actions have on their social environment,” says Van den Broek. “So by eating vegetarian more often you not only influence your own consumption, but you also set an example for the people around you.”