robert red forward says the timing is grebe redford. >> now is the right time, but the question is so much damage has occurred in the last 25 years when people were not listening. how much time is left and how many resources are left to protect. i think that's the key >>> thousands of people are demonstrating in chile's capital against the planned hydro electric project. protesters say it threatens drinking water supply to more than six million people. the 1.2 billion dollar project is to be built-in the alcomypo 50 kilometres east of the city. the triangle is a unique safe haven for endangered campilys and apes. climate change could all terre that - chimps and apes. >> reporter: this is the view from atop the most isolated jungle on earth. this is really cool. we've got an adult chimp here. she doesn't have children. then the other one with her youngster. it remains an unspoiled haven for wildlife, home to endangered animals all flourishing. how remote is it? to get there it's a two day road trip. first you take a highway to the nearest village. you're still 50 kilometres away. from

anger towards the mexican government you can coed on the street of mexico city on saturday evening grebe echoed. these are the people who are destroying our country are the chants. the agony of the families of the missing students is described as a permanent torture. the men are believed to be dead, but the truth of exactly what happened to them has yet to emerge more than a year later. independent investigators say they were kidnapped after trying to hijack buses for transport. a common move for students in mexico. the investigation also found the mexican government lied and whits held information from-- withheld information from the family. >> translation: i have seen repression and the social demands are being growing because people are disappearing and now we are demanding that the government give us back the students alive. >> reporter: the mexican government is refusing to launch a new investigation. the hope is that independent experts will expose the truth. those experts say they still need some assistance from the government. >> reporter: fortunately the protests last year and l