Climate change: ‘Average global temperature has increased by 0.7oC’
KARACHI: The average temperature of the world has increased by 0.7 degree Celsius since the beginning of the 20th century and it may rise by 1.6 to 4.3 degrees by the end of the 21st century, said Karachi University (KU) vice-chancellor (VC) Professor Dr Muhammad Qaiser. Dr Qaiser was addressing the local and international delegates […]