The United Nations climate talks that end in South Africa on Friday aim to reduce the world's carbon emissions.
In developing nations, deforestation is a major contributor.
When forests are cut down to use land for agriculture, carbon stored in trees is released as carbon dioxide (CO2).
Deforestation has been estimated at a rate of 13 million hectares per year.
According to the UN, Pakistan is the most heavily deforested country in Asia and the situation has worsened after the floods of 2010.
Al Jazeera's Imtiaz Tyab reports from Islamabad.