Dr Bob Bloomfield has coordinated the UK response to the International Year of Biodiversity working with diverse partners from more than 400 partner organisations in the UK (www.biodiversityislife.net). Bob has an academic background in biological science but has devoted his career to science communication and public engagement around science issues including, and especially Evolution and Biodiversity.
The recent Mori Poll confirming that British people are concerned about the loss of species is no surprise. For many years we have worked to protect areas of outstanding natural beauty such as our network of national parks. As a nation of nature lovers we take great interest in our wildlife. While many of us do this from our armchairs, many others volunteer with NGOs such as the Wildlife Trusts, the RSPB, and a host of other societies. Good progress has been made in protecting pockets of nature and specific species. Despite this over the past decade the United Kingdom, like the other 193 signatory countries to the UN Convention on Biological Diversity, has failed to meet the overall target of reversing biodiversity loss.
Biodiversity is the variety of living things, so biodiversity loss is happening at all levels – a decline in the genetic variety within species, individual species being pushed to the brink of extinction, and the decline in the variety of diverse habitats and ecosystems. What is happening now is without precedent, scientists estimate the current rate of extinction is maybe 1000 times the natural rate, and this erosion is due to human activities, primarily the consequence of the combined effects of human population growth and resource demands. These in turn fuel massive land-use changes with the expansion of agriculture and fishing, transport systems and urbanization, along with a host of industrial process with cause pollution through extraction, processing and waste disposal.
So here we get to the rub of the issue, while the efforts of Government environment departments, NGOs and volunteer organisations are having success, this is not dealing with the root cause of biodiversity loss which is the impact overall of human activity. Looking ahead to make a real difference humans need to look see things differently and do things differently.
The good news is that we are also becoming more aware of our dependence on biodiversity. Without green plants we would have no oxygen to breath. With no insects there would be no pollination of all the plants which provide our foods, fabrics, fuels and the host of other products for human use. Invertebrates, bacteria and fungi prevent us from being buried in our own waste and natural material would not be recycled which is essential for the maintenance of fertile soil. Without forests and moor land Insurance companies would pale at the risks of floods and drought, as these systems act like sponges to buffer the movement of rain to our rivers. Without genetic variety in nature we would have nowhere to turn to find the new strains of crops resistant to emerging pests and diseases, or for the natural pharmacopeia which is the basis for developing new medicines to protect people and our livestock. Even more significant today when we face the prospect of human induced climate change is the biological capability of forests, reef, ocean plankton, marches and bogs and other ecological systems to take in and lock away the greenhouse gas carbon dioxide. As humans allow biodiversity to degrade we threaten these Ecosystem Services, as they are called, and many more which I haven’t even mentioned.
Even more astounding is the emerging understanding of the economic cost of this loss. Conservative estimates of the economic costs of forest loss alone are between $2-4000000000000000000 ($2-4 trillion) each year (equivalent to about two global bank crises a year). Which brings me around to why it is so disturbing that so few people are aware of the meeting of the Convention On Biological Diversity meeting in Nagoya in October, when targets for the future protection of biodiversity will be set.
The Rio Earth Summit in1992 highlighted three agendas to be addressed; climate change; sustainable economic development; and biodiversity loss. What is now abundantly clear is that these are not separate agendas; quite the contrary, if we cannot address biodiversity loss we cannot hope to succeed in either of the other two, human society has to see all three as intimately bound and needing to be addressed together. As a life-long naturalist and environmentalist this is self-evident, that our complex interacting living system earth is something which we cannot be apart from, and if we do not tend to its vital organs, its oceans, rivers and forests, we will suffer as it declines. The good news is that the new economic awareness of the importance of biodiversity might be understood in the world in international politics and so we may see positive outcomes from Nagoya.
However biodiversity action needs the understanding of people too. People who can provide the mandate to ensure politicians provide the policy framework that will make a difference. People in business who can champion the green economy of which biodiversity preservation is a central part; and ordinary people who have the vision to see a world where we make space for biodiversity is the only way to ensure the health wealth and wellbeing of future generations.