Global warming hit India wheat crop in 5-15 year.

India wheat output, which has risen 40% over the last decade due to improved yield, could come under threat over the next 5-15 years because of global warming. For wheat, high night temperatures have a significant impact on yields, referring to in Africa where higher-than-usual night temperatures cut the wheat crop cycle by 19 days, resulting in a 30-50% fall in yields. Every 1 degree Celsius rise in average daily maximum and minimum temperatures tends to pull down the average wheat yield by 2-4%. Not just the (wheat) yield, but the nutritional value would also come down due to the gradual increase in the carbon dioxide in the atmosphere. Indian farmers are likely to harvest a record 96.6 million tonne wheat in 2016-17 (Jul-Jun), as against the 69.5 million tonne output in 2005-06.