The problems with sun plantation farming are first, it cannot provide natural nutrients so chemical fertilizers are needed which pollutes soils and water ways. Second, shade grown coffee trees are home to the many birds and small animals. Third, sun grown coffee trees are aging quickly so need to be replaced often. 

To ease negative aspects of coffee farming,there have been organic, shade-grown, and fair-trade certified coffees. And new add up to that list is 'carbon-free'coffee. 'Carbon-free' means that reducing green house gases which happens in packaging and shipping coffees to other countries by using the carbonfund.org's reforestation program.