Deep Sea Mining Bill

Debate between Philip Davies and Russell Brown

Friday 6th September 2013 Commons Chamber

[Philip Davies]

My hon. Friend makes a good point, and I hope that such detailed questions, which go way beyond my sphere of expertise, will be covered by the Minister. He has much more expertise in these matters than me, and I have hopes that he will be able to cover much of this ground in more detail than I could.

Environmentalists are also concerned about pollution of the deep sea, which they say is likely to occur from deep-sea mining activities as the ocean currents may carry sediments and toxic pollution far from the area of mining activities to areas of fishing, which would potentially have a terrible impact on fishing levels. However, it is worth quoting from a magazine that I am sure is read by many Members called Mining Weekly—I am sure you are a regular reader of it, Mr Speaker, so you will be able to correct me if what I say is wrong. The environment principal and marine ecologist for De Beers, Dr Patti Wickens, said:

“An environmental-impact assessment was undertaken in the early 1990s to assess the impact of offshore diamond mining on the seabed in Namibia. It was found that while mining activities alter the nature of the seabed landscape or habitat, this effect is not permanent.”

We should bear that point in mind: there may be some changes, but they will not be permanent, and the habitat will return to its normal state after the mining ceases in an area. I hope that gives comfort to those with concerns.

[Mr Russell Brown (Dumfries and Galloway) (Lab)]

I agree to a certain extent with what the hon. Gentleman says, but what if the damage is so significant that the environment cannot repair itself as he blandly indicates? Is there not a real risk that damage may not be reparable?

[Philip Davies]

I am grateful to the hon. Gentleman for giving me more credit than I am due. I was not claiming anything; I was merely quoting what a principal marine ecologist said. I would not wish the hon. Gentleman to think that was my theory. I would not want to claim credit for what Dr Patti Wickens said in Mining Weekly. I can only refer him to her if he wants to argue the case. I suspect he will get much further if he argues the toss with her rather than me. I will leave on the record what she said, however, and people can make their own minds up as to whether the hon. Gentleman or Dr Patti Wickens knows more about this subject. That is a judgment we will all have to make at some point.

The deep-sea bed is defined in the schedule as an

“area of the sea bed situated beyond the limits of national jurisdiction of the United Kingdom or any other State”.

The main marine mineral content of interest is manganese nodules, manganese crusts and seafloor massive sulphides. Two metallic mineral resources of the deep-sea floor incorporate dissolved metals from both continental and deep ocean sources. One of these is what my hon. Friend the Member for South East Cornwall—and, I think, my hon. Friend the Member for Bury North (Mr Nuttall)—described as golf ball-sized polymetallic modules. I have heard them described as “golf-to-tennis” ball size, but I am not sure whether there is any mileage in arguing about the size, as we know what we are talking about here.

These nodules precipitate from sea water over millions of years on sediment that forms the surface of the deep ocean. It is understood that they require the undisturbed conditions which are found in areas of the deepest oceans. That serves to highlight again the environmental point that the undisturbed conditions are what is important. To clarify:

“Polymetallic massive sulphides are types of minerals discovered in the oceans in 1979 that were previously known only from deposits that have been mined on land since pre-classical times for copper, iron, zinc, silver and gold.”

Rather than get bogged down in all the science, which my hon. Friend the Member for Bury North covered in some detail, I will focus on some of the impacts of this proposed legislation and ask some questions, which I hope the Minister may be able to answer.

The history is important. The oceans had long been subject to a freedom of the seas doctrine, a principle dating back to the 17th century essentially limiting rights and jurisdiction over the oceans to a narrow belt of sea surrounding a nation’s coastline. The rest of the seas were proclaimed to be free to all. That seems to me to be a sensible doctrine. It has been challenged by some countries, however, which have tried to claim the rights to certain seas beyond what international agreement indicates.