Bloomberg: Australian climate activists scaled a smokestack at a coal-fired power plant in Queensland, while a separate demonstration tomorrow will seek to block a rail line to Newcastle port in mounting protests against the use of coal. Four activists from the Greenpeace environmental group climbed the 140-meter-high (462 feet) chimney of the 37-year-old coal-fired Swanbank B generator yesterday and today one painted “Go Solar” on the smokestack, said Louise Clifton, a spokeswoman for the …