Circular Economy

Study:
Surf Breaks Key to Health of Climate, Ecosystems, Coastal Communities

An Oregon State University study finds surf conservation offers a unique opportunity to strengthen protection of climate-critical carbon stocks while boosting socio-economic health of coastal communities.

Published 3 months ago | About a 4 minute read

Image: Bill Fairs

Safeguarding places to catch waves is an opportunity to simultaneously mitigate climate change, fuel tourism and help surrounding ecosystems — according to new research from Oregon State University (OSU).

“There is a growing conservation movement regarding coastal areas that host surf breaks,” said Jacob Bukoski — Assistant Professor at OSU’s College of Forestry, Director of its Forests and Climate Change graduate certificate, and one of the study’s co-authors. “Earlier research showed that surf breaks tend to be biodiversity hotspots, but no one had looked at the stocks of carbon held within these ecosystems — carbon that could drive climate change if disturbed and lost.”

In the study, published in Conservation Science & Practice, Bukoski and collaborators identified more than 88 million tons of “irrecoverable” carbon in the land-based ecosystems surrounding 3,602 surf breaks around the globe.

Surf breaks — nearshore areas whose special mix of coastal and seafloor characteristics creates the waves surfers crave — are often found in or near ecosystems that are conservation priorities, such as coral reefs and mangrove forests.

Irrecoverable carbon is defined as carbon stored in nature that, if lost, could not be replenished within 30 years. Carbon sequestration is a key component of climate-change mitigation.

Bukoski stressed that the study did not take into account the significant, but harder to quantify, carbon stocks in the marine portion of surf break areas. The scientists looked at 28,500 square kilometers of watersheds that drain into surf areas — their analysis showed that more than 17 million tons of irrecoverable surf-break carbon are found in places categorized as key biodiversity areas but lacking any kind of formal protection. Just 3 percent of surf breaks are both formally protected and in a key biodiversity area.

Irrecoverable carbon density in surf ecosystems tends to be highest in the tropics and gets lower farther from the equator, with the exception of coastal forests in the Pacific Northwest.

“Temperate broadleaf and mixed forests and temperate conifer forests combined to hold nearly one-quarter of the carbon we found,” said Bukoski, who collaborated with scientists from Arizona State University, California State University, Channel Islands, Conservation International and Save the Waves Coalition.

Oregon ranks second among US states for irrecoverable surf-break carbon at almost 3.5 million tons. California leads the way at just under 7 million tons; and rounding out the top 10 are North Carolina, Florida, Texas, Washington, Virginia, New Jersey, South Carolina and Massachusetts.

Increasingly, surf breaks are being recognized as socio-environmental phenomena that can bring opportunity for sustained benefits for local communities, the authors say. They point to the potential intersection of the surf tourism industry — valued at as much as $65 billion globally — and the continuously growing carbon-credit market.

“Despite their high and multifaceted value, surf breaks and their surrounding environments face all kinds of threats — including coastal development, degradation of habitats, and impacts from climate change like rising sea levels,” Bukoski said. “When carbon-dense ecosystems are converted to other uses, they pump out large amounts of carbon dioxide into the atmosphere. Expanded conservation of surf ecosystems — both their marine and onshore components — could provide a range of benefits in addition to biodiversity conservation and climate-change mitigation.”

Coastal estuaries, he explains, help with nutrient cycling, control sedimentation and act as nurseries for young fish. Healthy upland ecosystems reduce erosion, which means better habitats and also reduced risk of illness to surfers because of improved water quality.

“Coral reefs shape surf breaks and provide fishing grounds, offer non-surfing recreational opportunities such as diving, and protect shorelines,” Bukoski added. “And just as importantly, ecosystems associated with surf breaks are culturally and spiritually valuable to communities around the world.”

He noted that irrecoverable carbon constitutes only a fraction of the total carbon stored in surf ecosystems. Given resource and time constraints, irrecoverable is the type of carbon that should be prioritized for conservation, “but any carbon lost to ecosystem conversion will affect the climate.”

“Our results suggest a significant opportunity for surf conservation to strengthen protection of climate-critical carbon stocks,” Bukoski stated. “At the end of the day, we should be shredding waves, not ecosystem carbon.”