you have to see it to believe it . director alastair fothergill and mark linfield have do a thing really great and it be a positive so i can not believe that other user of this web have rate it so poor and unless they be expect to see just a normal movie and with people and love scene and and so on . i be also convince that this kind of documentary be an excellent way to wake up u in order to save our beautiful planet . finally and it have nothing to do with al gore documentary movie an inconvenient truth mainly make of long monologue and painfully and with truth not always accurate and a many scientist have point already . the best thing you can do on earth be not miss earth .