KEY POINTS
  • Transboundary haze has plagued Southeast Asia for half a century, with the case reported in 1972.
  • It returned to Malaysia and Singapore this year after a hiatus of about three years as peatland fires intensify in Indonesia.
  • Southeast Asia is home to about 40% of the world's total peatlands, and these fires and resultant emissions and toxic haze are turning out to be a serious driver of climate change in Southeast Asia.
  • The perennial bickering and denials among affected Southeast Asian nations is one of the unintended results.
In this photo taken on Oct. 10, 2023, a man looks at a forest fire as it approaches houses in Ogan Ilir, South Sumatra in Indonesia.

With El Nino in full force, officials are bracing for the worst transboundary haze in southern Southeast Asia since before the pandemic in 2019.

At a time when climate change is presenting an existential threat to human beings, the fear is that these seasonal haze situations will worsen as intensifying global warming renders the peatlands and forests even more combustible in the dry season.