Sydney Morning Herald: Environmental campaigner and kayaker Steve Posselt on Saturday began a 29-day trek from Brisbane to Maryborough to protest against the building of the controversial Traveston Crossing Dam. A crowd of onlookers cheered as Mr Posselt started his journey which involves him paddling up the Mary River to Hervey Bay before taking to the ocean on the return leg. The Queensland government has proposed building the dam on the Mary River, near Gympie, to supply water for the state’s …