Over 20 Percent of World Plants Face Extinction

Modern civilization has not been kind to the world's flora. More than 20 percent of the plants known to science are facing extinction because more and more of their habitat is being used for agriculture and urbanization. VOA’s George Putic has more on the first ever global assessment of the world's plants.

© La Voix de l'Amérique - mercredi 11 mai 2016