Scientists have found that winters warmer than -8C could lead to water shortages. River basins around the world that once regularly experienced snow are now increasingly witnessing their snowpack shrinking.

In their pursuit of improved water conservation strategies along the Colorado River, scientists are now examining the influence of mountainous regions on how El Niño and La Niña events affect precipitation in the western part of North America.

The temperature readings during the beginning of this winter season were mild, with no significant instances of winter rains and snowfall in November and December last year.

The weather conditions have changed drastically these days. Experts say the spring and summer season in India is likely to be dry and hot this year and have instructed the country to be prepared for El Nino.