Scientists in Australia analysed 20 years of satellite data on greenery . Found there 's 4 billion tonnes more carbon stored by trees than in 2003 . Tree-planting in China , forest regrowth in former Soviet states and more lush Savannas due to higher rainfall are believed to be behind the rise .
Scientists in Australia analysed 20 years of satellite data on greenery . Found there 's 4 billion tonnes more carbon stored by trees than in 2003 . Tree-planting in China , forest regrowth in former Soviet states and more lush Savannah due to higher rainfall are believed to be behind the rise .