US: Forests continue to decline worldwide and especially in North America, according to a new study in the Proceedings of the National Academy of Science (PNAS). Employing satellite imagery researchers found that over a million square kilometres of forests were lost around the world between 2000 and 2005. And 30% of that loss has been in North America.
This represents a 3.1 percent loss of total forest as estimated from 2000. Yet the study reveals some surprises, including the fact that from 2000 to 2005 both the United States and Canada had higher percentages of forest loss than even Brazil.
Counting forest loss due to human disturbance or natural causes, the study found that North America lost the most forest of the world’s six forest-containing continents. Combined with South America, the largest extent of tropical forests in the world, the two continents represent half of the world’s total forest loss. Africa, in turn, suffered the least forest loss.
Source: News Mongabay