Hungary’s foreign minister, Péter Szijjártó, has called the proposed EU carbon tax on drivers of conventional cars “insane”. After a meeting of the Organisation for Economic Co-operation and Development (OECD) in Paris on Thursday, he said the proposal must be abandoned at all costs. “Judging from the developments of the recent past, the world appears to have embarked on an uncontrollable rollercoaster with regard to the economic outlook,” the foreign ministry quoted Szijjártó as saying. Tackling global challenges appears a forbidding task, Szijjártó said, adding that two things must be avoided. “One is not to increase the tax burdens of people and the other is not to make countries that are not responsible for the war in Ukraine to pay its price,” he said. “We reject any form of tax changes that would put extra burdens on people,” the foreign minister said.