Deforestation in Indonesia has had a massive environmental impact on the country, home to some of the most biologically diverse forests in the world, ranking third in number of species behind Brazil and the Democratic Republic of Congo. As late as 1900, Indonesia was still a densely forested country: the total forest represented 84 per cent of the total land area. Deforestation intensified in the 1970s and continuously accelerated since then. As a result, the estimated forest cover of 170 million ha around 1900 decreased to 98 million ha by the end of the 20th century, at least half of which is believed to be degraded by human activity. At then-current rates it was estimated in 2008 that tropical rainforests in Indonesia would be logged out in another 10 years. The illegal share of all logging is ca 80% in Indonesia. According to Google maps satellite images to 2012 Indonesia is losing around the same amount of forest as Brazil annually, despite being only a quarter of the size.