Marine Environment: Carbon Emissions

(asked on 4th March 2024) - View Source

Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, what protection beyond saltmarsh and seagrass is in place for blue carbon habitats; and whether he is taking steps to encourage private sector investment in (a) ocean-based regenerative farming and (b) other initiatives to support those ecosystems.


Answered by
Rebecca Pow Portrait
Rebecca Pow
This question was answered on 8th March 2024

The Government recognises the important role that blue carbon habitats can play in climate change mitigation, adaptation and resilience. These richly biodiverse habitats also provide a crucial buffer from coastal flooding, benefit fish stocks and improve local water quality.


The UK is a global leader in ocean protection and we have taken a number of steps to support blue carbon habitats. 40% of UK waters are in Marine Protected Areas (MPAs) which cover the majority of our saltmarsh and seagrass habitats. Our focus is now on ensuring that these MPAs are effectively protected. The first three Highly Protected Marine Area designations in English waters recently came into force, two of which include further blue carbon habitats such as sub-littoral biogenic reefs and sub-littoral mud.


The Environment Agency’s Restoring Meadow, Marsh and Reef initiative is working to restore native oyster reef, as well as seagrass meadows and saltmarsh. Working in partnership with environmental non-government organisations, industry, community groups and academia, the initiative aims to identify innovative funding opportunities, streamline regulatory processes, build capacity and share knowledge with partners to facilitate a larger programme of restoration.


Defra has set up the UK Blue Carbon Evidence Partnership in partnership with the Devolved Administrations to address evidence gaps that currently prevent the inclusion of blue carbon habitats in the UK Greenhouse Gas Inventory (GHGI). Inclusion of these habitats in the GHGI will allow blue carbon to be marketed and traded as a carbon offset, leveraging private investment into these vital natural carbon stores.

Increased private sector investment into nature-based solutions will be crucial to protect 30% of the worlds ocean by 2030 and limit global warming to 1.5 degrees. Our Green Finance Strategy sets out how the Government will mobilise public and private financial flows to meet climate and environmental targets and our Nature Markets Framework sets out the Government’s aim to raise at least £500 million in private finance to support nature’s recovery every year by 2027 in England, rising to more than £1 billion per year by 2030.

The UK is also leading the way in developing Marine Net Gain in English waters, which will require developers to leave the environment in a better state than before new development, targeting biodiversity decline while securing potential blue carbon benefits.

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