Climate and Ecology Bill [HL]

Debate between Lord Green of Hurstpierpoint and Lord Randall of Uxbridge

Committee stage
Friday 18th November 2022 Lords Chamber

[Lord Randall of Uxbridge (Con)]

My Lords, I declare my conservation interests as a council member of the RSPB, a trustee of the Bat Conservation Trust and quite a few others; they are all on the register. I am delighted to see the amendments in the name of the noble Lord, Lord Redesdale. I was not able to speak at Second Reading, but the amendments have improved the Bill by concentrating the mind on ecology. One of the problems we face is that, although we hear from some people about the biodiversity crisis, it can often be subsumed by the much bigger climate change crisis. I am sure noble Lords realise that the two are interconnected, but we have got to concentrate on ecology, the environment and so on.

My noble friend, who is a very generous and warm-spirited gentleman, may not be entirely happy with some of these things, but he will try to be as nice as possible, as is his way. However, I shall give some encouragement to the noble Lord, Lord Redesdale. Back in 2000, I think it was, in the other place, I introduced the Marine Wildlife Conservation Bill. I was number one in the ballot, and I was overenthusiastic. I had this wonderful Bill, which passed through the Commons—and was then scuppered in this very Chamber. What eventually came from the Commons to the Lords was a much reduced Bill, and then it did not pass, as the phrase has it. In fact, it led to the Marine and Coastal Access Act, which was much harder and harsher in the view of those lobby interests that tried hard to stop it. Sometimes, it is not a bad thing for a Government to let something go, so they can tick a box—not that any box-ticking exercise is going on here. There is a chance that, even if this Bill is not accepted, it will be a further reminder; it knocks the whole issue up the political agenda. In fact, the Government are not slow in trying implement a lot of measures. I am sure we will hear about them shortly from my noble friend.

We are talking about stopping the loss, but we should be increasing our biodiversity at the same time. Someone used a wonderful expression the other day: we are looking at biodiversity but if we are not careful, we will end up with bio-uniformity. We will have a lot more of the same species, and if habitats are not looked after properly, there might be—God forbid—a lot more grey squirrels, for example.

We must do something. This is a very important Bill. Many people have written to me about it, passionate people who want it to succeed. I feel a bit guilty, because they are probably being a bit optimistic about this Parliament’s processes. I hope I am wrong; we will see. They have my assurance, and I am sure that of many other noble Lords, that this issue will not disappear from the political agenda.

[Lord Green of Hurstpierpoint (CB)]

My Lords, I support the intention of this Bill to concentrate our minds on ecology. I declare an interest in environmental degradation, having the great privilege of being chair of the Natural History Museum, as listed in the register of interests.

Everyone knows that the Natural History Museum is one of the greatest visitor attractions of this nation. I am delighted to report that in fact, we were the most visited museum or gallery in the whole of the UK last year—and yes, we do have dinosaurs. Less well known is that we have a unique and huge collection of specimens from the world’s environment, and that we are a major scientific research institute with 350 full-time scientists and 170 doctoral students all working on that unparalleled database and in the field.

There is a problem. We know that life on earth started around 3.5 billion years ago and that life has spread to every corner of the land and sea. The fossil record also teaches us that over that vast period, there have been five occasions when almost all life on earth has disappeared. We call these “mass extinction events”: five occasions when dramatic changes in the environmental conditions—warming, cooling, ocean acidification—have wiped out almost all existing species, most recently, some 66 million years ago, when we lost the last of the dinosaurs.

The problem is that the evidence is telling us that we could be heading towards a sixth mass extinction—and this time an extinction that we are causing. The causes are quite well understood and are uncomfortably reminiscent of the last but one extinction event, some 200 million years ago, when exceptional tectonic activity created enormous emission levels of carbon and methane in the atmosphere and led to the loss of at least 80% of all species then on the planet. Does this sound familiar? This time, the emissions are again the root cause of dangerous climate trends, but this time, it is humans who have caused those emissions.

The loss of biodiversity has other causes too. Factors such as land use and pollution are equally, if not even more important to biodiversity degradation. Last year, ahead of COP 26, the Natural History Museum published its new biodiversity trends explorer. This uses satellite imagery to collect abundance data on plants, fungi, insects and animals all around the world. It shows for the first time how local terrestrial biodiversity is responding to human pressures causing land use change and intensification. We can now measure with increasing precision and detail what is happening to our environment essentially everywhere.

Our research continues, but it is already showing that the earth has only 76% of its pristine natural biodiversity still intact—well below the safe limit of around 90%, which is the broad consensus among natural scientists. Here in the UK, only just over half our natural biodiversity is still intact, placing us last in the G7 and in the bottom 10% worldwide, because so much of our land has been given over to sometimes marginal agriculture or monoculture conifer plantations.

At this point we might be tempted to throw up our hands and give up, but the crucial point is that this is a fixable problem. We have the science and the solutions, and we know that—given the chance before it is too late—environmental diversity responds and recovers quite well.