The world has experienced its hottest day on record, according to meteorologists.
The average global temperature reached 17.01C (62.62F) on Monday, according to the US National Centres for Environmental Prediction.
The figure surpasses the previous record of 16.92C (62.46F) - set back in August 2016.
In addition to what the other said, the leaves also get tough and bitter. Our first crop of lettuce went this way, now I’m doing a batch indoors since it’s still too hot.