Antonio Guterres also called out the one surprising part of the extreme weather patterns we've seen recently.
"It's a terrible idea," the pilot told passengers moments before he flew them to the Greek island.
"What global temperature will make us stop burning fossil fuels?"
Temperatures are set to reach 45C on Friday and into the weekend, with alerts in place across Spain, Italy and Greece.
And no, it's not always as straightforward as dehydration.
A pro gardener called the common product "toxic" to your garden.
This is why they find you so irresistible...