To save the oceans, refuse & raise awareness about single-use plastics, says Hannah Testa

Want to Save the Oceans? Refuse & Raise Awareness About Single-Use Plastics | GZERO Media

We always hear about the "three Rs" — reduce, reuse, and recycle — of sustainable waste management. But when it comes to single-use plastics, climate activist Hannah Testa likes to add two more: refuse and raise awareness. What's more, she says it's crucial to connect the problem with climate by showing the damage that single-use plastic waste is doing to the oceans, the world's biggest carbon sink and whose health is a good temperature check on the entire planet.

Testa spoke during the second of a two-part Sustainability Leaders Summit livestream conversation sponsored by Suntory.

More from GZERO Media

- YouTube

America’s retreat from global aid is leaving a massive funding gap that no other country is stepping in to fill, leaving the world’s poorest to pay the price, warns IRC president & CEO David Miliband on GZERO World with Ian Bremmer.

College graduate unemployment rate.
Eileen Zhang

“Pain and agony and suffering,” wrote Sam Angel, about his job hunt. He recently graduated with a masters in Cold War military history from Columbia University in New York, having decided to go right into a masters program after finishing undergrad.

Protesters line the street outside Alligator Alcatraz in Ochopee, Florida, holding signs during a vigil on Aug. 10, 2025.

60: A federal judge gave the White House and the Florida state government 60 days to shut down “Alligator Alcatraz,” a controversial immigration detention center in the Florida Everglades that has become a symbol of US President Donald Trump’s severe immigration policies.