Express Tribune: The United Nations is seeking a new climate chief to head the secretariat of the United Nations Framework Convention on Climate Change (UNFCCC). Pakistan has made an excellent choice by nominating a noted environmentalist, Dr Tariq Banuri, as its candidate. The United Nations Secretary General has the responsibility to find someone who can help put global climate negotiations that are now in utter disarray back on tracks. He also has the opportunity to give real direction to …