Al Jazeera – A rapidly worsening drought in the United States shows no sign of easing anytime soon. A lack of rain and a long-lived heatwave are to blame for the explosive growth of the drought that has hit Montana, South Dakota and North Dakota, but is also growing into southern sections of Canada. It is being called a “flash drought”, which is defined by National Oceanic and Atmospheric Administration, NOAA, as “relatively short periods of warm surface temperature and anomalously low and rapid decreasing soil moisture”. The dire situation affecting the northern-central US border states and southern regions of Canada’s Saskatchewan and Manitoba provinces only began in late May. The drought has now grown to extreme levels in the US and severe levels in Canada. Lack of rain across much of the area was the initial cause of the crisis. But as the ongoing event moved into the summer months it was then the growing heatwave that expanded the severity of the drought situation.