The World Meteorological Organization (WMO) expects more extreme weather as a result of climate change, with record temperatures of 50 degrees Celsius registered in Pakistan in April. The Organization said two meteorological bureaus in Pakistan had recorded temperatures above 50 degrees Celsius on April 30, an unprecedented phenomenon at this time of the year. WMO said storms in northwest India were another example of extreme weather. While seasonal winds are not unusual, the storms that struck Rajasthan and Uttar Pradesh on May 2 and 3 were exceptionally intense. More storms are expected in the northern parts of India, according to the Indian Meteorological Department. At the same time, there was record carbon dioxide concentration on April 7 at the Izaña Observatory in Tenerife, Canary Islands. Arctic sea ice, a long-term indicator of climate change, reached a low in April, according to measurements in the Bering Sea.