From the Philippines to Mali, countries struggle to count heat deaths

Food delivery driver John Jay Chan has had no protections from the record-breaking heatwaves that have hit the Philippines in recent months, but he must continue to work nine-hour days to provide for his family.

“We understand that the nature of our work means we’re exposed to extreme heat,” said Chan, a 30-year-old father of two, who has been a motorbike gig worker for six years.

Some of Chan’s colleagues have experienced mild heat stroke or elevated blood pressure while working...