Earth Hour 2024 on 23 March brought together millions of people across the world so they can all give an hour for Earth and play a role in protecting nature. The local observance of Earth Hour, led by WWF-Philippines, was held at the Kartilya ng Katipunan, beside the Manila City Hall.

"Too many of us have forgotten that we are deeply connected with nature, but the way we live, the way we produce and consume, the way we create the spaces we live
— all have made a tremendous impact on our environment, on biodiversity," WWF-Philippines executive director Katherine Custodio said during the media launch of Earth Hour 2024. "We need to remember a simple message that humans will be okay, only if nature, our planet is okay."

"This year Earth Hour Philippines' focus is on addressing plastic pollution as it is one of the most pressing concerns for our country and a public health issue. We generate two million tons of plastic waste in the Philippines every year, only nine percent is recycled and 35 percent leaks out into the open environment. As we are an archipelago of 7,640 islands, the damage caused by plastic pollution to our environment is magnified," Custodio said.

The Manila City local government was the main partner for this year and several iconic landmarks in the city, including the city hall clock tower and Rizal Monument, was switched off their lights for one hour from 8:30 to 9:30 p.m. to express their commitment and solidarity to the cause of protecting the and restoring the environment.

Across the Philippines, national landmarks, office buildings, government offices and homes switched off their lights as a sign of their commitment towards addressing our planet's sustainability.

The Earth Hour global celebration started as a symbolic event in Sydney, Australia, in 2007 and has grown into one of the world's largest grassroots environmental movements spanning over 7,000 cities and 193 countries and territories. The Philippines joined in 2008, making Earth Hour 2024 the 16th time the celebration is observed. From a symbolic lights off event, Earth Hour has evolved into a movement that not only shines light on the issue of climate change but also on the importance of protecting the environment in order to address the challenge of climate change.

The most recent scientific studies have found that the planet's deteriorating biodiversity and the fast changing climate are the two biggest challenges humanity confronts. There is a need to act quickly and decisively with new policies and systemic changes that promote renewable energy, transition to a circular economy, improving sustainable agriculture and fisheries, and increasing habitat restoration efforts. Plastics that end up in the ocean are recognized as affecting the ocean's carbon absorption capacity as well and also becomes a risk factor for human health due to ingestion by fishing species.