Kerry McCarthy

Like others, I very much welcome the Bill, and I hope it swiftly passes into law so that we can play a full role at Ocean COP1 next year. If we look back beyond recent years, we had people such as John Kerry, and David Miliband as co-chair of the Global Ocean Commission, spearheading efforts on this front, but it then felt as if the issue dropped off the agenda. Next year will be important for ensuring that it becomes a priority again. I will start by saying why the oceans matter, why they are under threat and why protecting them is so important. As we have heard, oceans are a massive carbon sink. They absorb over 90% of excess heat trapped by greenhouse gases, as well as around 25% to 30% of global carbon dioxide emissions. They host around 80% of all life forms, many of which are still waiting to be discovered. They are under threat from plastic pollution, ocean acidification and the bleaching of coral reefs, and from overfishing on an unsustainable industrial scale. The largest factory trawlers have net mouths of up to 1,200 metres wide and 200 to 300 metres deep that sweep up hundreds of tonnes of fish and seafood in one trip, much of which is bycatch, not for human consumption, that is then discarded. Oceana has called this “marine deforestation—akin to clear felling an entire rainforest when you’re only looking to harvest one type of tree”. The Environmental Justice Foundation has done some brilliant reports in the past into slavery and labour exploitation as part of this industrial-scale fishing, particularly in the Thai seafood sector. The fish stocks in territorial waters are depleted, but the further afield those ships go, the higher the risk to the workers that are kept at sea for years at a time. According to the United Nations Food and Agriculture Organisation, between 35% and 37% of assessed fish stocks are being fished beyond biologically sustainable levels. That figure is much higher in the high seas and in straddling fish stocks, with two thirds classified as over-exploited or depleted. That includes iconic species, such as sharks, that are a crucial part of the ocean ecosystem. It is estimated that there has been a 71% decline in the ocean population of sharks and rays since 1970. Some 77% of oceanic shark and ray species are threatened with extinction. Roughly 100 million sharks a year are killed by humans through targeted fishing, shark finning and bycatch. Many of us will have seen “The Blue Planet” series that did such a brilliant job at highlighting, among other things, the threat of plastic pollution and at spurring calls to action. I want to give a shout out to BBC Bristol’s natural history unit, which has been hugely influential, as well as giving great enjoyment to all the people who have seen its programmes. It is a great shame that agreement still has not been reached on a global plastics treaty, and we must keep up the efforts on that front. I hope that Sir David Attenborough’s latest production, “Ocean”, will have a similar impact when it comes to bottom trawling. As Sir David says: “What we have done to the deep ocean floor is just unspeakably awful.” He says that the trawlers tear the seabed with such force that “the trails of destruction can be seen from space”. It was reported that some of the material filmed for the programme was deemed too shocking to be shown. Due to climate change, more than half the world’s straddling fish stocks will shift across maritime borders between economic exclusion zones and the high seas by 2050. In the high seas, fisheries management is much more challenging and stocks are much more likely to be over-exploited, as I said earlier. That makes the need for marine protected areas in the high seas even more important. As we have heard, as well as being an island nation ourselves, because of our overseas territories the UK is the custodian of a fifth of the world’s territorial waters. That means that we are the neighbour, which is the next best thing as a custodian, of much of the high seas, including the Sargasso sea. Greenpeace is calling on the UK to take a lead in working with our overseas territory, Bermuda, on developing an ocean sanctuary proposal for the Sargasso sea, ready to present it at the first Ocean COP next year. The Sargasso sea is a uniquely biodiverse and important ecosystem. The floating sargassum mats are known as the “golden floating rainforest”, and they are a haven for juvenile fish and turtles, a spawning ground for a rich range of species and an important migratory pathway for humpback whales. As a generator of massive carbon sequestration and oxygen production, the Sargasso sea is vital in tackling climate change and planetary health, but it is at risk of overfishing, pollution and shipping traffic. There is much support in Bermuda for the proposal, and I hope that we will be able to take that forward next year. Given our strength as a global financial centre, the UK is uniquely well placed to play a role in developing innovative financial instruments that will help finance marine protection, building on what countries like Seychelles and Belize have done with their blue bonds and their debt restructuring. At COP29 last year, we launched our six principles for high integrity carbon and nature markets, and they have been out for consultation this year. In a world where public sector resources and donations are dwindling, the world is looking to make progress on leveraging private sector finance in a meaningful and sustainable way. That could be of huge benefit to climate-vulnerable coastal countries and small island states, but could also be applicable to funding marine protected areas in the high seas, making it economically viable to protect our seas rather than to plunder them. I have heard that the Treasury may be less enthused about the nature side of these voluntary markets than the carbon side, but I hope that is not the case. I will certainly keep up the pressure on the Treasury to take this forward. I want to speak briefly about deep-sea mining, to which I am totally opposed. Deep-sea mining could cause irreversible damage to deep ecosystems and a loss of undiscovered biodiversity. I understand that the current UK position, as confirmed by an FCDO ministerial answer last month, is that we back the suspension of deep-sea mining and support a moratorium on the granting of deep-sea mining contracts by the International Seabed Authority. The Minister said that we will not grant licences for exploitation unless “there is sufficient scientific evidence about the potential impact on deep sea ecosystems, and strong enforceable environmental Regulations, Standards and Guidelines”. However, it is not clear what powers we will have through this international collaboration to stop other countries issuing such licences, so I hope that the Minister will clarify that in her summing up. I am a little concerned that the measures in the Bill about marine genetic resources will open the door to deep-sea mining. I accept that there is a case for exploring the potential of such resources, if carried out under strong safeguards, but I would resist any attempt to allow deep-sea mining to occur. Finally, while I welcome international initiatives and, as has been made clear, the Bill addresses areas beyond national jurisdiction, we need to lead by example with stronger protection for our own territorial waters. As has been said, there has been some progress, notably around our overseas territories, but perhaps it is easier to act when those areas are thousands of miles away and do not have the same economic interests. There has been great work around Ascension, Pitcairn and South Georgia, but there is more of a mixed picture around the UK coast. Dogger Bank in the North sea is one of the largest marine protected areas. Since it was established in 2022, it has benefited from a 98% reduction in bottom trawling, supporting the recovery of marine species like halibut, cod, angel shark and eels. As it says in the UK’s national biodiversity strategy and action plan, all marine protected areas must be well managed, enforced and effective, not paper parks. We could start by moving faster to end all bottom trawling in our marine protected areas. The recent excellent report “Blue Carbon”, published by the World Wide Fund for Nature, the Wildlife Trusts and the Royal Society for the Protection of Birds, set out a blue carbon mapping project carried out with the help of the Scottish Association for Marine Science. We are the first country to undertake such mapping. We know about the importance of kelp forests, seagrass meadows and mangroves, but it is the less glamorous sediment on our seabed that is the true hero in carbon sequestration. The report found that 224 million tonnes of organic carbon was stored in just the top 10 cm of seabed sediments and vegetated habitats, and 98% of that was in the sediment, such as the mud. In my role as Minister for climate, it frustrated me that we talked so much about the role of trees and forests in carbon sequestration, but we did not talk about the oceans at all. I was told that that was because it was difficult to quantify, so this project is a great example. If this is the amount of carbon work that is being done by the seabed around the UK coast, just think about the amount that the seabed of our high seas is doing. We must have action on that at Ocean COP. I hope that the Bill will be enacted very soon, and I look forward to next year’s discussions.