From the description:
Tanzania’s government is moving ahead with its plans for a hydroelectric dam in Selous Game Reserve. A huge swath of the UNESCO World Heritage site and habitat of iconic African wildlife would suffer irreparable damage. 1,500 km2 – an area the size of London – has just been opened to logging. Please help us protect Selous.

Sign the petition here:
https://www.rainforest-rescue.org/petitions/1143/keep-loggers-out-of-selous-game-reserve