What do we mean by carbon footprint offsetting?
A carbon offset is a reduction in emissions of carbon dioxide or greenhouse gases made in order to compensate for, or to offset an emission made elsewhere
Offsetting CO2 emissions is based on the voluntary contribution of an amount of money proportional to the tonnes of CO2 emitted, have not been able to be reduced by other means.
Specifically, that money is used to buy carbon credits with each one being equivalent to one tonne of CO2 emitted. This economic contribution is dedicated to projects in developing countries and they should:
-Capture a number of tonnes of CO2 equivalent to the amount emitted, by developing a carbon sink project, e.g. a forestry project
-Prevent the emission of a number of tonnes of CO2 equivalent to the amount emitted, by means of an energy efficiency project, replacing fossil fuels with renewable energy, waste management or avoided deforestation.
We cannot stop emitting GHI when we travel or during our daily activities, so the only way to say that we are "carbon neutral" is through offsetting.