President Obama visits Midway Atoll

Go behind the scenes with President Obama and legendary oceanographer Sylvia Earle at Papahānaumokuākea National Marine Monument— now the world's largest protected marine reserve, thanks to President Obama. The newly expanded monument will allow us to permanently protect a fragile marine ecosystem that's home to more than 7,000 species and to study the effects of climate change in our oceans. Learn why President Obama has protected more of our lands and waters than any president in history: wh.gov/climate