Last year's Pakistan floods and Russian fires were of opposite natures and more than 1,500 miles apart, but they were closely linked, a study by NASA researchers revealed.

Around 300 wildfires in Russia forced the country to suffer the hottest summer in her history. The wildfires caused nearly $15 billion in damages and killed as many as 56,000 people.

Floods in Pakistan submerged around 307,374 square miles, nearly 20 per cent of the country, affecting 20 million people with the destruction of property, and killing as many as 2,000 people.

NASA researchers believe that the two widely different natural disasters linked by abnormal "Rossby wave", a massive river of air which meanders across the world in a westerly direction.

The gaseous and transparent wave may not come into view like a fluid, but that is exactly how the emaciated layer of air enclosing the globe behaves.

A Rossby Wave is caused when the atmosphere's fast-flowing jet stream air currents wander from their usual course. Their wandering from their path dislodges masses of cold or warm air that often creates cyclones.

While the Russian heat wave began before the Pakistan violent flow, both weather events peaked at nearly at the same time.