Whatever is generated by human activity.
Veja também
See also
Greenhouse effect
Greenhouse effect
It is the way that the Earth has to maintain a constant temperature conducive to life. It is a natural process that provides the necessary temperature for the establishment and sustenance of life on Earth and which is only possible through greenhouse gases. These...
Carbon sinks
Carbon sinks
Any processes, activities or mechanisms, including biomass, and especially forests and oceans, which have the property of removing a greenhouse gas, aerosols or precursors of greenhouse gases from the...