Many of us in Metro Manila woke up on the first day of September to a thick haze hanging over the city, blurring the skyline and obscuring buildings that we normally see even from afar. At first glance, it looked like the typical pollution that plagues the city or, since we had experienced continuous rains before it happened, lingering rain clouds. But we later learned that it was haze that actually traveled hundreds of kilometers, originating from burning forest and peatland fires in Indonesia and carried to the Philippines by the southwest monsoon, or what we call the habagat.
We in Metro Manila were also not alone. Social media was abuzz with posts saying the haze also affected parts of Central Luzon, CALABARZON, MIMAROPA, and the Visayas. Authorities advised the public to limit outdoor activities and wear face masks due to worsening air quality. I put on a face mask as I left the house, and seeing other people in the streets wearing face masks reminded me of the pandemic six years ago. Some local governments across the country also suspended classes to protect the children's health,
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Unsurprisingly, the Philippines was not the only one affected. Neighboring Association of Southeast Asian Nations (ASEAN) member countries such as Malaysia and Brunei also experienced haze and poor air quality from the Indonesian fires. In fact, these countries bore the brunt of the current transboundary haze because of their proximity to the fire-affected areas. Their air quality reached hazardous levels, disrupting daily life, schools, and transportation.
Transboundary haze from Indonesian fires is not new to the region. Southeast Asia experienced major haze crises in the last three decades. I remember that an edition of the Southeast Asian Games in Singapore was even plagued by haze, with some officials worrying about the health of their participating athletes. But for me, what made this episode notable was that the Philippines, which, as far as I can remember, had largely been unaffected by past events, found itself directly impacted.
I know the previous incidents led the ASEAN leaders to adopt the Agreement on Transboundary Haze Pollution, where member states agree to work together to monitor fires, share information, and help prevent future haze episodes. I am now watching how ASEAN responds to this latest incident under the Philippines' chairmanship. It would be interesting, given that ASEAN's principle of non-intervention often leads to inaction.
What I find even more unsettling is that this was not a natural disaster. News reports linked the ongoing forest and peatland fires in Indonesia to land-clearing activities for corporate agriculture. Unlike typhoons or earthquakes, these incidents are often preventable. Some reports also indicated that parts of Indonesia are experiencing a long dry spell, contributing to fires spreading in areas not intended for burning. It is quite frustrating to know that actions taken hundreds of kilometers away could force us here in Metro Manila to wear face masks, stay indoors, and worry about the air we breathe.
Thankfully, it started to rain again. The weather bureau hopes the continuous rain helps wash smoke particles out of the atmosphere and improve air quality in Metro Manila and other affected areas.
This new haze problem provides a simple but very important lesson: in an interconnected region like ASEAN, we share the air we breathe. What happens in one country can affect millions in another. Protecting our environment is a shared responsibility.



















