12 agosto 2021
A new $3.3 million research program by BHP and CSIRO, Australia’s national science agency, will seek to measure and quantify the net emissions reduction potential of Australia’s mangroves, seagrasses and tidal marshes.
The program will also quantify the value of other benefits these ecosystems provide for coastal protection, fisheries and biodiversity.
Mangroves, seagrasses and tidal marshes, also known as ‘blue carbon’ ecosystems, lock up carbon at faster rates than most land ecosystems.
CSIRO research scientist and project co-leader Dr Andy Steven said the conservation and restoration of blue carbon ecosystems could deliver substantial emissions reductions, while also delivering other important benefits to the environment and local communities.
“Along with their ability to absorb high amounts of carbon dioxide, blue carbon ecosystems can reduce the impact from waves and storm surges and provide important habitat for many species of plants and animals, including some that support important recreational and commercial fisheries,” Dr Steven said.
“They are natural solutions to some of the most pressing problems the world faces.”
The 30-month project will take advantage of existing knowledge on how much carbon is stored in these ecosystems and the rates at which it is sequestered, as well as satellite-based earth observation technology and computer modelling to estimate their net emissions reduction potential.
The project will build on Australia’s world-leading blue carbon science, bringing together researchers from CSIRO and Australian universities to apply their combined expertise in two related streams at a national scale.
The first stream will estimate the carbon abatement potential of blue carbon methods that could be implemented through Australia’s Emissions Reduction Fund. The second stream will develop science to underpin ways of quantifying the additional benefits that accrue to fisheries, biodiversity and coastal risk reduction.
CSIRO research scientist Dr Mat Vanderklift said these additional benefits were becoming increasingly important to help the world tackle the climate and biodiversity crises — which are the focus of major intergovernmental meetings in 2021.
“Sometimes revenue from carbon offsets isn’t enough to fully fund restoration. Demonstrating the additional benefits that these projects bring can increase their value, helping them to become financially viable. That can make the difference between a project proceeding or not.
This is one of many projects that CSIRO is conducting with industry to develop solutions that address the climate challenge.
The project, which has co-investment from CSIRO, will make its information and tools publicly available to investors, project developers and communities.
Head of Climate Resilience at BHP, Holly Buschman, said that the project was a positive example of an industry – science partnership working to generate public good research outcomes.
“Our ultimate aim is to enable the restoration and protection of Australia’s coastal ecosystems,” Ms Buschman said.
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