By Morgan Erickson-Davis for The Campaign to Stop GE Trees - Last year the world lost an area of tree cover the size of New Zealand, according to satellite data. That’s around 29.7 million hectares (297,000 square kilometers) – and was a 51 percent jump over 2015. The tree cover loss data came from the University of Maryland (UMD) and were analyzed by World Resources Institute (WRI). While the data don’t just represent deforestation (they also lump in tree plantation harvesting), the analysts attribute most of the tree cover loss to human impacts affecting forests such agriculture, logging and mining. But why the big jump in tree cover loss from 2015 to 2016? The analysis points specifically to fire as the primary culprit. The data indicate big upticks in fires around the world, both in areas where fire naturally occurs — like northern Alberta, Canada — and wetter areas of the tropics where fire is (or perhaps more accurately, used to be) a rare phenomenon. One of these latter areas is the Brazilian Amazon. Rainforest is, by definition, rainy and moist, and the Amazon rainforest is no exception. Rainforest shouldn’t burn on its own — and yet, WRI’s analysis found understory fires contributed to a tripling of tree cover loss in the Brazilian Amazon (3.3 million hectares) over that time.