A spat within Austria’s coalition government over an environmental law deepened on Thursday as the conservative chancellor’s party filed charges against Climate Protection Minister Leonore Gewessler, alleging abuse of office. The criminal complaint was received by the Vienna public prosecutor’s office, a spokeswoman told dpa. Despite the the legal manoeuvre, Chancellor Karl Nehammer, of the Austrian People’s Party (ÖVP), said that he would not dissolve the coalition between his conservatives and the Green Party before elections are held in September. The spat arose after Gewessler agreed to th…