21% floral species at risk of extinction: Study
According to the first world-wide assessment of flora, carried out by UK-based Royal Botanic Gardens, Kew, 21% of Earth's floral species are at risk of extinction. The reported causes included climate change, diseases, habitat loss and invasive species. With 2,034 new species discovered in 2015, scientists have estimated that there are around 390,900 different species of plant on the planet.