FACT SHEET: President Obama to Designate Largest Marine Monument in the World Off-Limits to Development

Designated Area in the South-Central Pacific Ocean is Home to Pristine and Biodiverse Marine Ecosystems That Are Vulnerable to the Impacts of Climate Change

WASHINGTON, DC — As part of this Year of Action, President Obama will sign a proclamation tomorrow to designate the largest marine reserve in the world that is completely off limits to commercial resource extraction including commercial fishing. The proclamation expands the existing Pacific Remote Islands Marine National Monument, one of the most pristine tropical marine environments in the world, to six times its current size, resulting in 370,000 square nautical miles (490,000 square miles) of protected area around these tropical islands and atolls in the south-central Pacific Ocean. Expanding the Monument will more fully protect the deep coral reefs, seamounts, and marine ecosystems unique to this part of the world, which are also among the most vulnerable areas to the impacts of climate change and ocean acidification. 

The recently released National Climate Assessment confirms that climate change is causing sea levels and ocean temperatures to rise. Changing temperatures can harm coral reefs and force certain species to migrate. In addition, carbon pollution is being absorbed by the oceans, causing them to acidify, which can damage coastal shellfish beds and reefs, altering entire marine ecosystems. To date, the acidity of our ocean is changing 50 times faster than any known change in millions of years.

In response to this growing threat, the President announced in June his commitment to use his authority to protect some of our most precious marine landscape just like he has for our mountains, rivers, and forests. The Administration identified expanding the Pacific Remote Islands Marine National Monument as an area of particular interest because science has shown that large marine protected areas can help rebuild biodiversity, support fish populations, and improve overall ecosystem resilience.

To meet the President’s commitment, the Administration examined how to expand protections near the Monument and considered the input of fishermen, scientists, conservation experts, elected officials, and other stakeholders, including through a town hall meeting and over 170,000 comments submitted electronically.  

The expanded Monument will include over 130 newly protected sea mounts, which are hotspots of biodiversity that harbor uncounted numbers of new and unique marine species. The expansion will better protect the habitat of animals with large migration and foraging ranges that stretch throughout the area, including sea turtles, marine mammals, and manta rays.  The Monument is also home to millions of seabirds that forage over hundreds of miles and bring food back to their rookeries on the islands and atolls.  These birds serve as a conveyor belt of energy bringing nutrients caught at sea back into the near shore environment where they help sustain the ecosystems. 

Commercial fishing and other resource extraction activities, such as deep sea mining, are banned in the Monument.  In recognition of the importance of encouraging and supporting access to federally managed areas, recreational and traditional fishing that is consistent with the conservation goals of the Monument will continue to be allowed in the expanded Monument.

This proclamation builds on the Administration’s efforts to protect both our lands and our oceans.  Early in his first term, President Obama launched the National Ocean Policy to harmonize the implementation of more than 100 laws that govern our oceans and create a coordinated, science-based approach to managing the many resources and uses of our coasts and oceans. In June, President Obama launched a series of executive actions to increase protections for the ocean, including combating black market fishing, establishing a pathway to new marine sanctuaries, and understanding the impacts of ocean acidification. The President has also designated eleven other national monuments across the United States to permanently protect sites that are significant to our nation’s rich history and natural heritage.

The expanded monument will continue to be managed by the Departments of the Interior and Commerce through the U.S. Fish and Wildlife Service and National Oceanic and Atmospheric Administration respectively.  The Agencies will develop management plans pursuant to their respective authorities under the Antiquities Act, the Magnuson-Stevens Fishery and Conservation Management Act, and other relevant authorities to ensure proper care and management of the Monument.

First exercised by President Theodore Roosevelt in 1906 to designate Devils Tower National Monument in Wyoming, the authority of the Antiquities Act has been used by 16 presidents since 1906 to protect unique natural and historic features in America, such as the Grand Canyon, the Statue of Liberty, and Colorado's Canyons of the Ancients.