A controversial Soviet-era paper mill on the shores of Lake Baikal will be closed down, a government spokeswoman said Thursday, after years of complaints about pollution at the UNESCO-protected Siberian site. "A decision has been made to shut down the Baikalsk Pulp and Paper Mill," a spokeswoman for Deputy Prime Minister Arkady Dvorkovich told AFP. "The enterprise will be closed down over the course of the next few years."