Environment Bill

Debate between Lord Krebs and Lord Archbishop of York

Report stage
Monday 6th September 2021 Lords Chamber

[Lord Krebs (CB)]

My Lords, in supporting the amendment from the noble Lord, Lord Teverson, I draw attention to a particular feature that has been mentioned but perhaps could be made more explicit. It is a feature of both the climate emergency and the biodiversity emergency: the discontinuities that will arise as a result of incremental change. My noble friend Lady Boycott alluded to this in talking about the rivets in an aeroplane: it does not matter, perhaps, if one, two or three rivets fall out, but when more than a critical number fall off there is a discontinuity and the plane falls out of the sky. This is true, as we know from the IPCC and others, of the climate emergency. We hear over and over of the notion of dangerous climate change, whereby if we exceed a certain boundary then we will tip into a new world in which life becomes intolerable and many regions of the planet are uninhabitable for the human species. That is equally true of the biodiversity emergency.

I am an academic ecologist, and so I will refer back to the scientific literature. Back in 1969, an American ecologist, Robert T Paine of the University of Washington, drew attention to the notion of keystone species. He was studying a species of starfish that lives in the intertidal zone of the north-western United States—Washington state. If this species of starfish disappears then the whole ecosystem flips to a new state, because the starfish is the keystone species that maintains the equilibrium of the intertidal ecosystem. The same will be true in many other situations.

It is not just the number of rivets that fall out of the plane that is important; it is particular, key rivets. The sad thing is that, if we lose some of these keystone species, we will be among the ones that suffer, because we will suddenly find that the systems we rely on to produce food, purify our water and provide other ecosystem services will simply not exist any more. A genuine emergency is created by crossing these thresholds: once we have crossed them, it will be too late.

[The Archbishop of York]

My Lords, in the Book of Common Prayer, the Lord’s Prayer says:

“Our Father in heaven,

hallowed be your name,

your kingdom come,

your will be done,

in earth as in heaven.”

I repeat, “in earth”. It was not the work of some liberal conspiracy in the Church or the Liturgical Commission but, somewhere in the last 300 or 400 years in the popular saying of the Lord’s Prayer, it somehow changed from “in earth” to “on earth”. This tiny change encompasses for me all that is wrong in our relationship with the earth of which we are a part. We used to understand that we live in it, we are part of it, we depend on it and that, as good stewards of the earth, the earth depends on us. Then, somehow, we decided that we did not live in it any more but on it; it was ours and we could do with it as we wanted.

Therein lies the whole challenge to the human race. What I want to hear from the Government on this crucial amendment is a clear signal that we have recognised—as a human race, as a nation and as the Government of this land—that there is an emergency, and that what is happening to our climate and to biodiversity is completely connected. At the same time there must be recognition of the terrible responsibility that we bear for having imagined that we lived on the earth rather than in it. By giving that signal, everything else could follow.