Deep Sea Mining Bill

Debate between Barry Gardiner and David Nuttall

Friday 6th September 2013 Commons Chamber

[Mr Nuttall]

My hon. Friend is absolutely right. Indeed, I was coming on to say that my understanding was precisely the same. The 1981 Act set out to regulate mining on the sea bed in the farthest and deepest oceans of the world. The reason it was required was that it had been discovered that valuable hard mineral resources, known as manganese or polymetallic nodules, existed on the seabed, as we have heard, and United Kingdom companies, among others, were interested in mining them.

[Barry Gardiner]

The hon. Gentleman just used the important word: “hard” mineral resources. The Bill would excise that word to allow for the exploitation of oil and gas as well. Would he care to reflect on the assurance given by the hon. Member for South East Cornwall (Sheryll Murray) in introducing the Bill that operations at a deep-sea level such as fracking would not be used?

[Mr Nuttall]

I cannot give any assurances about that; it is not for me to do that. I know that the hon. Gentleman is concerned about environmental protection, and quite rightly too, but I venture to submit that if the Bill is not made friendly towards companies, there is a danger that they will go and seek some other jurisdiction with a lot fewer environmental protections than in this country. There is a danger in going too far the other way. We have to strike the right balance on these matters, and I believe the Bill attempts to do that.

United Kingdom companies at that time were among those interested in mining polymetallic nodules. The idea behind the 1981 Act was to provide a statutory framework for the development of a nascent industry. As my hon. Friend the Member for South East Cornwall said, it was passed in the full knowledge that negotiations were taking place at the United Nations. As we have heard, unfortunately, things did not proceed quite as fast as parliamentarians at the time thought they might. That might be due to a difficulty with the technology. Indeed, it is interesting to consider that man was able to send rockets and put men on the moon, the satellite of our planet, back in the 1960s, yet it has proved to be technologically much more difficult to travel to the depths of our planet.

A United Nations conference on the law of the sea had for several years been working towards an agreement on establishing an international system for regulating the exploitation of the mineral resources of our oceans. It was hoped that when a satisfactory agreement had been reached and had entered into force, the international arrangements would supersede the national provisions contained in the 1981 Act. It was for that reason that the legislation was sold to the House as a temporary measure. The Government of the day anticipated that there would be no need for any national legislation once the United Nations convention came into force.

The Government of the day were understandably keen to improve the security and availability of future supplies of vital raw materials for our UK industries. The UK was, and still is, heavily dependent on a small number of countries for supplies of minerals that are critical raw materials for our manufacturing industries. The possibility of securing our own supplies of minerals such as nickel, cobalt, copper or manganese from the sea bed was understandably regarded as a very welcome prospect indeed. Furthermore, the prospect of UK companies participating in the new industrial activity of sea-bed mining promised an economic opportunity for the benefit of the companies involved and the wider British economy.

The nodules that gave rise to that flurry of interest and activity were described at the time not as being like golf balls, as my hon. Friend the Member for South East Cornwall described them, but as like charred potatoes that varied in size and, where they occurred, were like a carpet on the sea bed in a single layer. We do not yet fully understand how and why the nodules form, but it is clear that they apparently require the undisturbed conditions that are found only in the deepest areas of the ocean. Although the nodules were found in various parts of the ocean, only very few areas contained sufficiently rich deposits to justify the enormous costs of establishing commercial mining operations. The deposits of nodules are beyond the limits of national jurisdictions and were consequently treated as resources of the high seas, which any nation could attempt to recover.

It is perhaps worth considering what exactly it is envisaged will be mined as a result of the Bill. There are essentially three types of minerals involved. First are the polymetallic nodules, which contain manganese, copper, cobalt and nickel. As my hon. Friend mentioned, they either occur on the surface or are partially buried, and are discovered at depths of 3,000 to 6,000 metres—in other words, some 4 miles deep, so we are not talking about something that one can undertake lightly. It is estimated that the global reserves of deep-sea manganese nodules are in the order of 10 billion tonnes. Those of greatest economic interest are made up, on average, of about 30% manganese, 1.5% nickel, 1.5% copper and 0.3% cobalt. However, I understand that the presence of traces of other, rare earth elements might also attract interest in these resources, particularly as the supply of such metals from land-based resources is reducing.

Secondly, there are polymetallic sulphides, which are sulphide deposits found at water depths of up to 3,700 metres in mid-ocean ridges, back-arc rifts and sea-mounts. They often carry high concentrations of copper, zinc and lead, in addition to gold and silver. That is what gave me the idea that there could be a 21st century Klondike in the deep sea. Thirdly, there are ferromanganese crusts, in which cobalt-rich iron-manganese forms on the sea floor. These, too, could lead to mining activity.

Before I began to research the Bill, the letters “ISA” had always stood for “individual savings account”. Now, when I see them, I think of the International Seabed Authority. That new body was established under the United Nations convention on the law of the sea, and it plays a pivotal role in deep-sea mining. The authority has stated that the areas of exploration have not advanced much since 1981. They still mainly comprise the Clarion-Clipperton fracture zone in the equatorial north Pacific ocean, south and south-east of Hawaii, and the central Indian basin in the Indian ocean. Exploration for polymetallic sulphides is also taking place in the south-west Indian ridge and in the mid-Atlantic ridge.

Unsurprisingly, in view of the potential economic importance of those resources, there has been considerable international interest in, and concern about, the nature of their exploitation. In 1967 and 1970, that concern was formalised in two resolutions of the United Nations. The first sought to impose a complete moratorium on deep-sea mining until international arrangements had come into force. The second was a declaration of principle stating that the sea bed beyond the limits of national jurisdiction, and its resources, were the common heritage of mankind.

A United Nations conference on the law of the sea was convened in 1973 to negotiate an international system of regulation for sea-bed mining. No agreement was reached by the time of the passage of the 1981 Act, even though the conference had met regularly since 1973 and made some progress on developing an international regime. The negotiations were sufficiently advanced, however, for it to be fairly clear that any convention emanating from the talks would contain complex provisions for operations by private companies and by an international sea-bed authority. Incidentally, the negotiations apparently stalled because the United States decided to carry out a full review of its policy on the law of the sea, and therefore decided not to play an active role in those negotiations.

Those uncertainties demonstrated the problems that would face Governments and mining companies until an international convention could be agreed and ratified. Because of those uncertainties, the United Kingdom Government of the day considered it necessary to pass the 1981 Act as an interim measure to give the UK mining industry a firm basis for proceeding, pending an international agreement being reached.