The coffee tree has a good production for more than 20 years. After that it begins to reduce his potencial unit it becomes economically unsustainable.

 

Therefore producers renew coffee plantations or erradite them. In both cases they burn the wood from the old coffee trees, generating CO2 and other gases, increasing enviromental polution.

 

This second option has an extreme emission of CO, CO2 and other toxic gases that accentuate air pollution, further aggravating global warming.