AHN: More than 80 percent of new farmlands in tropical countries have come from the felling of trees, increasing the release into the atmosphere of carbon that causes global warming, a study has found. The expansion of farmlands is expected to increase due to growing global demand for agricultural products. More than half a million square miles of new farmland created in tropical countries, such as Brazil and Indonesia, between 1980 to 2000 was due to the felling of forests which in turn, …