'Have to be outside': Thai delivery riders swelter in heatwave

"I'm afraid of getting heatstroke," the 51-year-old told AFP as the mercury hit 37 degrees Celsius (99 degrees Fahrenheit), with humidity pushing the "real feel" to a sticky 43C (109F). Large swathes of Southeast Asia are struggling through a heatwave that has broken temperature records and forced millions of children to stay home as schools close across the region. Experts say climate change makes heatwaves more frequent, longer and more intense, while the El Nino phenomenon is also driving this year's exceptionally warm weather.