Carbon dioxide (CO2) accounts for more than 80% of total greenhouse gas emissions globally, but only 12% of emissions are currently covered by explicit carbon prices. The High Level Panel on Carbon Pricing has called on the international community to double this figure to 25% by 2020 and increase it again to 50% within a decade. Read more.
Carbon accounting is a great program if the system of crediting/debiting could be understood by students, citizens, companies and society at large.
Simple communication is a key to understanding the concept.
More information on climate change