Today, forests make up approximately 31% of the Earth's total land area, covering 15.68 million square miles (40.6 million km²). Over the last three decades, the world has lost just over 4% of its total forest area, which is roughly half the size of India. Europe and Asia were the only two regions that saw a significant overall increase in forest cover during this period, while Oceania saw no significant change, and North and Central America experienced a slight decrease.