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Tierra Resources Releases Results of Two-Year Assessment of Blue Carbon Potential on Louisiana’s Coast

Published: July 15, 2024 by Editorial Team

NEW ORLEANS, La. and Portland, Ore. – A two-year assessment of the potential to develop blue carbon projects on Louisiana’s coast estimates that carbon finance revenue can provide up to $1.6 billion in critical funding to assist with wetland restoration over the next 50 years. The study, supported by Entergy Corporation through their Environmental Initiatives Fund, and prepared in partnership by New Orleans-based Tierra Resources and Portland-based nonprofit The Climate Trust, examines existing wetland restoration techniques—river diversions, hydrologic restoration, wetland assimilation, and mangrove plantings—identifying areas for future scientific investigation to support carbon offset programs.

Findings from the report will be shared by Tierra Resources and the American Carbon Registry at a free national webinar, scheduled for March 5, 2015, at 1 p.m. Central Standard Time.

Initial study findings showed that restoration in Louisiana has the potential to produce over 1.8 million offsets per year; almost 92 million offsets over 50 years. This is the equivalent of taking approximately 350 thousand cars off the road each year or 20 million cars off the road over 50 years. Wetland restoration techniques identified in this study could potentially generate $400 million to $1 billion in offset revenue depending on the dollar value of the carbon offset—with the potential for almost $630 million more by including prevented wetland loss in the carbon accounting.

Entergy’s commitment to the study stems from the company’s mission to create sustainable value for all its stakeholders. Wetlands play a crucial role in storm protection for many Entergy communities, helping preserve industries, businesses, homes, and livelihoods along with Entergy’s own facilities and assets.

“Entergy was pleased to be able to sponsor this important work and help unlock the huge potential for wetland carbon credits in Louisiana,” said Chuck Barlow, vice president for environmental strategy & policy for Entergy Corporation. “By capitalizing on the economic benefits offered through carbon credits, more of Louisiana’s wetlands can be restored and preserved. Eventually, this work in Louisiana can be expanded to address other critical wetland areas throughout the nation and the world, making this study a first step, with the potential for major global impact.”

Of the restoration techniques studied, forested wetlands that receive treated municipal effluent, referred to as wetland assimilation systems, have the highest net offset yield per acre. However, it was concluded that river diversions and mangrove plantings have the potential to generate the largest volume of offsets in Louisiana due to the huge amount of acreage upon which these restoration techniques can be implemented. Additionally, carbon offsets from wetland assimilation systems and river diversions show potential to be stacked with water quality credits should these markets evolve in Louisiana.

The primary barrier to wetland carbon commercialization that was identified through this study is the high cost of wetland restoration. Carbon finance will likely lead to new public-private partnerships that leverage carbon funds with government restoration dollars to stimulate investment into wetland projects.

“The results of this study demonstrate that carbon finance has substantial potential to generate important revenue to support wetland restoration,” said lead author Dr. Sarah Mack, President and CEO of Tierra Resources. “Furthermore, this study points to Louisiana as an innovator of creative financing strategies for wetland restoration, and as creating new investment opportunities that will yield substantial economic and environmental benefits.”

The American Carbon Registry, a leading voluntary and California compliance Cap-and-Trade Offset Project Registry, in 2012 approved a methodology developed by Tierra Resources, which quantifies the greenhouse gas emission reductions and carbon sequestration associated with restoring degraded deltaic wetlands in the Mississippi Delta. This methodology allows landowners and project developers to document, quantify, and seek verification for the GHG benefit of their wetland restoration projects, ultimately leading to certified offset credits that can be sold as carbon credits in the voluntary market.

“Carbon markets provide economic incentives for reducing carbon emissions, as well as an important and innovative approach to finance environmental restoration and conservation,” said Dick Kempka, vice president of business development for The Climate Trust. “The opportunity to engage in this emerging sector and help provide a path for wetlands restoration to enter the carbon markets has been an exciting journey.”

The restoration of the Mississippi River Delta and the storage of blue carbon (the carbon captured by coastal ecosystems) is of national significance. The economic health of much of the United States depends on sustaining the navigation, flood control, energy production, and seafood resources of this valuable deltaic river system. Each of those functions is currently at severe risk due to a coastal wetland loss rate of approximately one football field an hour.

“Wetland restoration provides a wealth of benefits including storm surge reduction, habitat preservation, carbon sequestration and recreation; as well as job creation, and economic development that are vital to Louisiana’s sustainability and resilience,” states Michael Hecht, President & CEO of Greater New Orleans, Inc. “By innovating creative financing solutions for coastal restoration, local companies like Tierra Resources are contributing to the growing hub of Emerging Environmental expertise that can be found in Greater New Orleans.”


About Tierra Resources
Based in New Orleans, La., Tierra Resources was founded in 2007 with a mission to conserve, protect, and restore coastal wetland ecosystems by creating innovative solutions that support investment into blue carbon. Tierra Resources is nationally recognized innovator in the research, development, and monetization of blue carbon contained in coastal wetland ecosystems, such as estuaries, mangroves, and salt marshes. Tierra Resources’ services enable landowners, corporations, nonprofits, and government clients to understand the regulatory, financial, and scientific landscape to preserve and restore wetlands and monetize wetland offsets.

About Entergy Corporation
Entergy Corporation is an integrated energy company recognized for its leadership in environmental and social responsibility. This research was supported by Entergy Corporation through its Environmental Initiatives Fund. The EIF was established by shareholders to implement environmentally beneficial projects such as working with companies like Tierra Resources to develop leading-edge technologies and other environmentally beneficial projects that align with Entergy’s environmental strategy. Entergy delivers electricity to 2.8 million utility customers in Arkansas, Louisiana, Mississippi and Texas. Entergy has annual revenues of more than $12 billion and approximately 13,000 employees.

About The Climate Trust
The Climate Trust is a 501(c)(3) nonprofit organization with over 15 years of carbon financing experience. Our mission is transforming the economy to value our climate. In order to arrest the rise in greenhouse gas emissions and to avoid the most dangerous impacts of climate change, The Climate Trust works to accelerate project implementation, develop financing solutions, and establish a supportive policy environment in the agriculture, forestry and biogas sectors.

About the American Carbon Registry
The nonprofit American Carbon Registry (ACR), an enterprise of Winrock International, is a leading carbon offset program recognized for its strong standards for environmental integrity. Founded in 1996 as the first private voluntary registry in the world, ACR has 20 years of experience in the development of rigorous, science-based carbon offset standards and methodologies as well as in carbon offset issuance, serialization and transparent online transaction and retirement reporting. ACR has set the bar for transparency and integrity that is the market standard today and continues to lead carbon market innovation.

Contact: Sarah Mack, Tierra Resources
Tel: (504) 339-4547

Ann Becker, Entergy Corporation
Tel: (601) 368-5014

Kasey Krifka, The Climate Trust
Tel: (503) 238-1915 x211

Mary Grady, American Carbon Registry
Tel: (805) 884-1961