UNITED NATIONS (AP) — Using apocalyptic images, three presidents and seven foreign ministers warned Thursday that a warmer world is also a more violent one. At a ministerial meeting of the Security Council, the officials urged the U.N.’s most powerful body to do more to address the security implications of climate change and make global warming a key part of all U.N. peacekeeping operations. The leaders and ministers pushing for more U.N. action said warming is making the world less safe, pointing to Africa’s conflict-plagued Sahel region and Syria and Iraq as examples.. Micheal Martin, Ireland’s president, who chaired the...