Marine Environment

John McNally Excerpts

Tuesday 14th November 2017 Westminster Hall

[John Mc Nally (Falkirk) (SNP)]

It is a pleasure to serve under your chairmanship, Mr Owen. The hon. Member for Huddersfield (Mr Sheerman) has secured a vital debate today on marine degradation and the threat to our seas. We have heard many good points about how marine environments and resources are being threatened, degraded or destroyed locally and internationally.

The hon. Member for Huddersfield made some excellent points about sustainable development and mentioned the sage advice of David Attenborough. I think we all thank goodness for that man, because the world actually listens to him. The hon. Gentleman made us aware of his longstanding association with social entrepreneurship; his concerns about plastic and microbeads are shared by all those in the Chamber, and his passion was not lost on us. The hon. Member for Richmond Park (Zac Goldsmith), in an intervention, made an important point about the Marine Stewardship Council tick—something that leads us all to assume that ethical, approved practices are in place. Real doubts are now emerging about whether the MSC awards the blue tick to questionable fishing areas.

The hon. Member for Strangford (Jim Shannon) made a point about recycling, and about educating people from primary school children through to older people such as me, to think about what we do with our purchases, and how we dispose of them. His point was well made and much appreciated. International co-operation was also mentioned, and I will refer to that later in my speech. Again, the point was well made and much needed.

The hon. Member for St Austell and Newquay (Steve Double) shared his concerns about the future of his beautiful area, and expressed his views on the plastic throwaway culture. It is good that the Government are trying to help as much as they can, because we all share the same concerns. The hon. Member for Bristol East (Kerry McCarthy) shared her knowledge and concerns about marine protected areas and the threat to the marine environment in her constituency. Her consistency on these matters throughout this Parliament has been well noted. The hon. Member for Wells (James Heappey) mentioned his awareness of the amount of plastic bags being washed up on our beaches, and through the tributaries and along the river networks that lead to them. My hon. Friend the Member for North Ayrshire and Arran (Patricia Gibson) made excellent points about marine planning, of which she is a great champion. She described the positive steps that the Scottish Government were taking to address those problems, and said how valuable our seas were to us all.

The right hon. Member for Newbury (Richard Benyon) made an interesting observation on the lightbulb moment throughout the world on MPAs in general. That was much appreciated, although I do not know the poet to whom he referred—perhaps I will try to research him a bit later. The hon. Member for Rochdale (Tony Lloyd) pointed out the need for global co-operation on action that needs to be taken, and I totally agree with him.

The principal threats are climate change, marine pollution, unsustainable resource extraction, and the physical degradation of marine and coastal habitats and landscapes. Such transnational problems can be solved only by international co-operation. Globally, humans are exerting multiple pressures on 41% of the marine area, and we harvest 40% of the ocean’s productivity. Some 30% of global fish stocks are recognised as being overfished, and the quantity of predatory fish has halved in 40 years. The world’s seas have already absorbed about a third of the carbon dioxide emissions for which humans have been responsible. Although that has been a valuable carbon sink, it has reduced the pH of the oceans from 8.2 to 8.1, with the possibility of a decline to 7.8 by 2100. That reduces the concentration of calcium and other minerals in sea water, threatening shellfish and coral species. Such acidification hinders the ability of marine ecosystems to absorb carbon, and it is thought to be one of the reasons why the marine absorption of carbon has slowed since the year 2000.

Melting sea ice has caused a global average rise in sea levels, and the rate by which it is rising is increasing. Local tidal variations and the effects of post-glacial rebound mean that rises are higher in the south of England than in Scotland—southern England is subsiding by about 1 mm to 2 mm per year; Scotland is rising by a similar amount. A 50 cm rise in relative sea level would endanger 200 km of England’s coastal flood defences. That represents 20% of the total length of those defences, and their destruction would nearly triple the number of properties at high risk from coastal flooding—a very concerning and worrying trend for those communities.

As my hon. Friend the Member for North Ayrshire and Arran said, Scotland has a massive fish farming industry, which we recognise is not without its problems. The salmon industry in Scotland, Norway, Canada and elsewhere is under investigation for its impact on wild fish and marine ecosystems. I am sure that the House will welcome the inquiry into the environmental impact of fish farming that will be carried out by the Scottish Government early next year—they have not shied away from their responsibilities.

It has been estimated that 8 million tonnes of plastic enter Europe’s oceans every year, which represents an extraordinary and insidious threat to the health of our seas. In light of the findings of an inquiry into microplastic pollution, which was carried out by the Environmental Audit Committee, of which I am a member, I ask whether the “renewed strategy” on waste and resources that was promised by the Secretary of State will include effective measures to tackle the origin of most marine litter, which is litter on land. We should work with and follow the Scottish Government in establishing a strategy to tackle marine litter, and support efforts to reduce the escape of pre-production plastic pellets—I have here some nurdles. We should praise the efforts of the charity Fidra, which is raising awareness of this awful problem in Scotland, and hopefully we can ensure that the upcoming ban on microbeads extends to all consumer products.

I had a lot to say about the Chagos islands and various other things, but I shall now conclude my remarks because of time. As a wealthy maritime country, the UK has more opportunity than most to show leadership in the fight to safeguard the future of our oceans. However, as we have heard, there is a long way to go before that is achieved in reality as well as on paper. Today we welcome this debate, and we hope that the Government will now deliver the political will to follow through on what we have discussed and debated today.