Since its inception, MPI has focused on the connection between climate change and ocean health in its law and policy research. The ocean plays a crucial role in mitigating climate change, absorbing 30% of CO2 and 90% of excess heat caused by human activities. However, its capacity to safely store carbon is nearing its limit.
As a carbon sink, the ocean absorbs and stores vast amounts of carbon, helping regulate the global climate. Phytoplankton near the surface absorb as much CO2 as the world’s forests, while deep currents and seafloor sediments store carbon for centuries. This dynamic interaction supports both marine ecosystems and the global climate.
In 2023, the High-Level Panel for a Sustainable Ocean Economy emphasized that the ocean’s role in absorbing 25% of carbon dioxide emissions and 90% of excess heat has led to warming, acidification, and rising sea levels.
Sea level rise
MPI’s policy research covers areas like sea level rise, seagrass in decarbonization, and carbon credits. Since 2007, MPI has led various projects on sea level rise, including the 2013 report Sea Level Rise Adaptation: Emerging Lessons for Local Policy Development and a brochure on local adaptation, updated in 2018. MPI continues to work with local governments on climate resilience through data updates and community consultations.
Sea level rise in the face of climate change
There is broad scientific consensus that global climate is warming largely as a result of increased concentrations of carbon dioxide and other greenhouse gases in the atmosphere. Sea level rise in the coming decades is anticipated to be a major effect of climate change with mostly negative impacts for many coastal regions, including Florida.
Managing the impacts of sea level rise will require adapting human activities in the coming decades through decisive policies, programs and actions so that critical human systems—communities, economies, emergency response systems—and natural resources—wetlands, coastal ecosystems, fisheries—can continue to function effectively as ‘resilient’ systems in the face of climate change.
Scientists advise that many anticipated impacts from sea level rise can be addressed through early planning and well-designed adaptive responses.
The Marine Policy Institute undertakes research on policy tools and opportunities that can help local Florida governments develop strategies to deal with climate-associated sea level rise and adapt to its impacts.
In 2009, MPI published a synopsis entitled “Policy Tools for Local Adaptation to Sea Level Rise.” The synopsis condenses main issues and observations from the full report and abstracts the full assessment in the following sections:
- Basics about climate change science and sea level rise.
- Highlights from policy tools for local adaptation to sea level rise.
- Key principles of adaptation from emerging experience.
- Leadership opportunities going forward.
With the support of the Sarasota Bay Estuary Program (and funding from US EPA through its Climate Resilience project), MPI also produced a brochure on tips for local adaptation planning to sea level rise, initially published in 2014, with an updated edition in 2018: Sea Level Rise – tips for adaptation planning.
See sea level rise in action with an interactive map of sea level rise in Sarasota or take our short survey on sea level rise and climate change.
Sea level rise activity elsewhere
The Marine Policy Institute (MPI) at Mote Marine Laboratory has been monitoring how other coastal jurisdictions are responding to climate-related sea level rise with adaptation policies and actions to address negative impacts over the near and long term.
MPI has researched key aspects of these initiatives and periodically prepares summaries of the processes and policy responses underway. The objective is to help provide information about experiences and lessons being learned elsewhere to help local decision makers along Florida’s Gulf Coast stay informed about the latest sea level rise adaptation strategies.
Other sea level rise projects include research with MPI interns. Some have produced published papers such as: Sea Level Rise Adaptation: Emerging Lessons for Local Policy Development, Mote Technical Report No. 1723, 2013, which review experiences from fourteen U.S. coastal jurisdictions representing a variety of city, county, and state efforts with sea level adaptation.
San Fransisco, CA
Chula Vista, CA
Carbon sequestration through seagrass restoration and expansion
Carbon sequestration through seagrass restoration involves storing carbon in ecosystems that absorb more carbon than they release. Biological carbon sequestration occurs in vegetation such as kelp forests, mangroves, and seagrass beds, playing a key role in reducing atmospheric carbon and mitigating climate change.
Seagrass beds act as carbon sinks and provide essential habitats for marine life. In 2022, MPI researched seagrass policy in Florida, focusing on relevant laws, the role of genetic research in seagrass restoration, and identifying priority areas for restoration. This research was published in Overview of Seagrass Policy and Action in Florida (Mote Technical Report No. 2664).
Blue carbon credits
In 2023, MPI began exploring how marine carbon sequestration, such as through seagrass and mangrove restoration, could support carbon credits for ocean conservation. This could provide financial backing for Mote’s projects while increasing blue carbon sequestration.
Carbon credits allow companies to offset their carbon emissions, with each credit representing one ton of CO2 removed from the atmosphere. Blue carbon credits work similarly but focus on marine ecosystems like tidal marshes, seagrass meadows, and mangrove forests. These ecosystems absorb significant amounts of carbon and help mitigate climate change.
Blue carbon credits not only offset carbon but also support biodiversity. The funds from carbon credits help organizations expand greenhouse gas-reducing projects, such as planting mangroves and restoring kelp forests.
Examples of blue carbon projects include planting mangrove sea trees, planting seagrass and algae, planting coral sea trees, restoring kelp forests. For interesting projects already underway, see https://seatrees.org/pages/about-us-blue-carbon.