Cited among urgent problems that must be addressed are ozone depletion; water pollution; deforestation; loss of soil productivity; and the extinction of species, which by the year 2100 may include a third of all species now living.
Pakiliste probleemide seas, millega tuleb tegelema hakata, mainiti osoonikihi hõrenemist, veereostust, metsade maharaiumist, viljaka mullapinna kadumist ning looma - ja taimeliikide väljasuremist, mis võib aastaks 2100 tabada kolmandikku praegu olemasolevatest liikidest.