In many major crop regions, workers plant and harvest in spiraling heat and humidity

A global study of major crops has found that farmworkers are being increasingly exposed to combinations of extreme heat and humidity during planting and harvest seasons that can make it hard for them to function. Such conditions have nearly doubled across the world since 1979, the authors report, a trend that could eventually hinder cultivation. The most affected crop is rice, the world's number one staple, followed closely by maize.

from Top Health News -- ScienceDaily https://ift.tt/NVboLvc