Environmental campaigner Jagger throws weight behind initiative to restore barren land to life . Leading environmental group , IUCN enlists Jagger to promote IUCN campaign in support of Bonn Challenge . IUCN receive commitment from U.S. government at 2020 hectares of forest . Jagger concerned that there are `` no promises in sight '' after the Kyoto Protocol expires in 1997 .
Environmental campaigner Bianca Jagger throws weight behind initiative to restore barren land to life . Leading environmental group , IUCN enlists Jagger to promote Plant a Pledge campaign in support of Bonn Challenge . IUCN receive commitment from U.S. government at Rio+20 to restore 15 million hectares of forest . Jagger concerned that there are `` no promises in sight '' after Kyoto Protocol expires in December 2012 .