Like millions of other migrant laborers in the Persian Gulf, one of the world's hottest and driest regions, construction worker B. Sajay does not welcome summer.

"We work in very high temperatures, this is the nature of our work. And yes, we suffer from severe heat," the Indian national said in Muscat, the capital of Oman.

Although summer has only just begun, temperatures have already topped 50 degrees Celsius in parts of the desert region, which is bearing the brunt of climate change.