Feeling Blue? Meet Blue Finance
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Feeling blue about climate change? So are we. But we’re here to turn that frown upside down, at least for a moment, by shedding light on a corner of climate finance that’s making waves: blue finance.
“Blue finance” refers to funding for projects, infrastructure, and initiatives that support healthy marine and freshwater environments. I mean, let’s be honest, the ocean deserves some love and attention after all its heavy lifting. As the largest carbon sink, the ocean has absorbed around 25% to 30% of all human-produced carbon dioxide emissions since the start of the Industrial Revolution. Beyond carbon sequestration, the ocean provides essential goods and services, including food, transportation, and trade.
So how does blue finance help undo the damage that humans have done to the ocean, from overfishing to plastic pollution to destroyed reefs? Governments and companies issue blue bonds that function like regular fixed-income instruments, but the money raised funds projects that have positive impacts on the ocean. Blue loans are more accessible to smaller companies and can incentivize ocean-positive initiatives by including terms that financially reward this behavior. For example, a seafood company might get a lower interest rate on its loan for every target it hits on sustainable sourcing.
Sounds like smooth sailing, right? While blue finance is promising, a massive shortfall remains between the capital needed to sustain ocean health and the capital actually deployed by public, private, and philanthropic sources. Current funding, around $9 billion per year, covers only about 2% of the annual need, according to the Blue Bond Incubator. Key barriers to closing this gap are harmful subsidies and weak regulation that enable overfishing and illegal fishing.
But let’s not end on that blue note. Ten years ago, blue finance barely existed. The Seychelles’ first $15 million sovereign blue bond in 2018 started the market. By June 2025, cumulative issuance had grown more than 800-fold to $15.25 billion.
The ocean isn’t out of deep water yet, but for once, the money is moving in the right direction. Maybe being blue isn’t so bad after all.
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