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MANILA - Climate change adaptation is crucial for countries like the Philippines, which is among the most vulnerable in the world to extreme weather events.

The Philippines has committed to reducing greenhouse gas emissions by 70 percent under the 2015 Paris Accord. With the help of the International Finance Corp, the country is instituting "green buildings" or environmentally friendly structures.

"There were many apprehensions because people think when you mandate green buildings, it will be very costly and very difficult," said Maria Teresita Lacerna, green building country lead, at IFC Philippines.

"These are just misconceptions. There are simpler ways of greening your buildings without costing too much," he said.

The Philippines is among 5 countries in the world that are most at risk from climate change and has been battered by powerful storms in the last decade, including the deadliest on record, Super Typhoon Yolanda (Haiyan).

"Climate change has been affecting us and will continue to affect us seriously if we don't do something, if we don't do something, act immediately urgently and decisively," said Sec. Emmanuel de Guzman, vice chairperson of the Climate Change Commission.