A reduction in harmful emissions requires a change in our habits, and for this more awareness is needed. Andreas Zachariah from the UK has developed a helpful system called Carbon Diem (previously named Carbon Hero) to track carbon footprints in real time. The concept is to help reduce global warming by making people more aware of their carbon footprint, encouraging them to change their mode of travel. Carbon Diem uses satnav information to track in real time people’s movement and to calculate their carbon footprint.