Environment Agency
Introduction: Silent Spring
There was once a town in the heart of America where all life seemed to live in harmony with its surroundings. Then a strange blight crept over the area. Everywhere was a shadow of death. It was a spring without voices. On the mornings that had once throbbed with the dawn chorus of robins, doves, jays, wrens, and scores of other bird voices there was now no sound; only silence lay over the fields and woods and marsh. No witchcraft, no enemy action had silenced the rebirth of new life in this stricken world. The people had done it themselves.
Those are the opening lines of Rachel Carsons Silent Spring, the 1962 book that sparked the modern environmental movement. Sixty years on we are closer than ever to that silent spring happening. Since we humans and everything we cherish depends on nature, we have the strongest possible interest in avoiding that outcome.
But if we are going to fix the problem, we need to start by understanding what the problem is, its magnitude, and whats causing it.
That is why the Environment Agency has today published a major new report on the state of our nature. It looks in particular at what is happening to our plants and animals (trigger warning: its shocking), explains what these do for us (apart from bringing us joy at their beauty), and sets out how we can turn things around.
Our report focuses on England, but you could write this report about almost any other country in the world right now and while the details would all be different, the underlying picture would be the same awful.
Whats happening: the story so far
People have affected the environment in England for millennia. Most of our untouched natural wilderness had probably already vanished from Britain by the time the Romans arrived. Even then our forebears were not living sustainably, cutting down forests and starting to degrade nature. The Industrial Revolution made things worse, by trigging the start of climate change as coal was burned to power machines, and by starting to put much more pollution into environment. That accelerated the degradation of nature on which our plants, our wildlife and all of us ultimately depend.
But it wasnt until the second half of the 20th century and our own lifetimes that things really started to go downhill. Our report collects the evidence. Species-rich grasslands such as meadows have decreased in extent by around 97% since 1930. Lowland heathlands now cover only 20% of the area they did in the 19th century. The loss of wetlands, one of the richest habitats, has also been severe: we have lost 99.7% of our fens, 81% of our grazing marshes and 44% of our lowland bogs. Almost all our ancient trees have gone too: up to 70% of our remaining ancient woodlands have been deforested or damaged, mostly during the past century.
The loss of meadows, wetlands, woods - the decline in those precious habitats has had its inevitable consequence: an equally shocking decline in the plants and animals that depend on them. Since 1970, 41% of our species have decreased in abundance and 15% of all our native species in the island of Britain are now threatened with extinction.
The position is even worse for the mammals, birds, butterflies and moths designated as priority species those about which we have the greatest concern. They have declined in abundance overall by 61% since 1970.
Since that date butterflies and moths have decreased in average abundance by 16% and 25% respectively; a third of pollinator species have declined; water and wetland birds have declined by 14%, woodland birds by 25%, and farmland birds by 55%. A third of farmland specialist species those that depend on a narrow ecological niche, like grey partridge, turtle doves, tree sparrows and corn buntings - have declined by more than 90% since 1970.
Its no better for our mammals: several species have undergone drastic reductions in population sizes. Hedgehog numbers have fallen by approximately 66% since 1995 and water voles have done even worse, falling by 78%. Overall, a quarter of mammals in England are now threatened with extinction. Let me say that sentence again in case you missed it: a quarter of mammals in England are now threatened with extinction. If that doesnt make you angry, you havent been paying attention.
The story is a bit better in our waters, partly as a result of all the work the Environment Agency has done over the last three decades to clean up our rivers. Freshwater invertebrates, on which a lot of other aquatic life depends and which had previously declined to a low in the mid-1990s, have shown a recovery in recent years. Not so some other species like salmon though: in 2019, only 16% of our rivers met the minimum population targets for salmon conservation, the lowest score since monitoring began in 1993.
Meanwhile, things arent any better on the ground. 18% of plants and 15% of fungi and lichens are at risk of extinction in Great Britain.
Why this is happening
Why is this happening? Its the result of a combination of factors: unsustainable use of our resources, changes in land use, pollution, the modifications we have made to our rivers, urban development, etc, much of which has been going on for centuries but which is now having a cumulative effect.
Whats making this even worse is something relatively new the climate emergency. Changing climate patterns are disturbing species and the warmer temperatures that climate change is bringing is threatening the existence of some of those species. Example: lakes. When the water temperature in a lake gets to 17 degrees C, they are likely to suffer from algal blooms which lead to a deterioration in water quality, less life in that water and less diversity in the life that remains.
So there are a range of factors in the nature crisis we are now witnessing. They all, however, have one thing in common: they are down to us, the humans.
Why is this a problem?
Why should we care about biodiversity? Does it really matter if the vole goes the way of the dodo? It would be a shame to live in a world without tree sparrows, but we could surely manage without them, couldnt we? Heres why it does matter: the biodiversity crisis is a crisis because it wont just kill the plants and animals it is killing. It will kill us too.
Thats because nature is indivisible and interdependent. Nature provides us with a host of things we depend upon, such as clean water, clean air and food. No nature, no food. Its vital in providing resilience to climate change by absorbing carbon dioxide, regulating local climatic conditions and providing flood protection. No nature, no climate shield. And as humans we depend on green and blue spaces for our own health and well-being. No nature, no us.
What we do about it
Are you depressed enough yet? Dont be because we can turn this round. Just as we can successfully tackle the climate emergency by doing the right things, we can successfully tackle the biodiversity crisis too.
Nature is indivisible. What happens in one part of our blue planet affects all the other parts. So the solution to the biodiversity crisis has to start at the global level. The framework for that already exists: the international Convention on Biological Diversity, which has committed all its signatories to protect our natural diversity, and to enhance it wherever possible. At the UN Biodiversity Conference (COP 15) due to take place later this year, governments from around the world need to agree a new set of goals for the next decade with strong monitoring to measure progress on the ground in reversing nature loss.
What the government is doing
We need action at the national level. The UK government, with other leading nations, made a commitment to halt and reverse biodiversity loss by 2030: or in other words to become Nature Positive. Many organisations, the EA included, have made a commitment to be Carbon Neutral by 2030. I would (and do) get out of bed every day to achieve that. But I would leap out of bed to help the planet become Nature Positive.
We could achieve that goal in this country. We know what we need to do: nurture our protected species; sustain our protected areas; better protect wildlife habitats outside those areas; restore our damaged habitats and create new ones; start to knit together nature networks across the whole country; build a nature positive approach into our planning and development; stop the pollution which damages our habitats; tackle the climate emergency which is accelerating the biodiversity crisis and vice versa; and wherever we have a problem, employ nature based solutions as the default to solving it.
And much of this not only can be done, by governments national and local, by businesses, by landowners, by others; much of it is already being done. And what gets measured gets done. That is why we welcome the lead the UK government has given others by requiring, in the new Environment Act, the setting of a legally binding target on species abundance in England for 2030, aiming to halt the decline of nature.
What the EA is doing
The Environment Agency is playing its part. We protect species and the habitats on which they depend. Example: our work to ensure that the abstraction of water (which we regulate) does not damage wildlife or habitat and when we think it will, we are reducing or in some cases stopping that abstraction by adjusting or turning off the licences that allow it. We create and restore habitat: ove