Why Philippine Seas Are Vital to Climate Action

Philippine seas are not just marine habitats; they are vital for climate regulation and significantly impact daily life in the country. Their role extends beyond biodiversity to influence the environment and the well-being of Filipino communities.

Nature’s Air Conditioner

Philippine seas regulate temperatures by absorbing solar heat, taking in about 90% of warming-related heat. They also stabilize temperatures during the dry season. 

Furthermore, weather patterns like the northeast monsoon (“Amihan”) and the southwest monsoon (“Habagat”) are influenced by sea temperatures. Disrupting this balance can lead to more frequent droughts, intense rains, or unseasonal storms.

A Powerful Carbon Sink

Our seas are the world’s largest carbon sink, absorbing massive amounts of carbon dioxide—the main driver of climate change. In the Philippines, seagrasses and mangroves play a key role in this process. But when these ecosystems are damaged by pollution or illegal activities, more CO₂ remains in the atmosphere, worsening global warming.

Nature’s Shield Against Disasters

Philippine seas—and the life within them—help protect coastal communities from natural disasters. Coral reefs act as wave barriers, while mangroves slow storm surges and prevent flooding. When these natural defenses are destroyed, communities become more exposed to typhoons and rising sea levels.

Livelihood and Food Security

Climate change raises sea temperatures and acidity, which can cause fish to migrate or die. This disrupts fishing communities—especially small-scale fisherfolk—and can lead to higher seafood prices and less food on Filipino tables.

Something’s Being Done

Luckily, several local and national projects are being conducted to help preserve our seas. 

One of the most impactful efforts comes from SM Supermalls through its SM Cares Coastal Clean-ups. In partnership with the Department of Environment and Natural Resources (DENR) and thousands of volunteers, the initiative has removed hundreds of thousands of kilograms of waste from oceans and waterways—turning community action into lasting environmental impact.

READ: Coral Reefs at Risk: What’s Being Done to Protect Them?

In the face of a changing climate, protecting the Philippine seas means protecting our future. So as a maritime nation, we must continue to value and defend them—for the people, the planet, and generations to come.