| James Lovelock | |
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Lovelock in 2005
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| Born | 26 July 1919 Letchworth, Hertfordshire, England, UK |
| Residence | England, UK |
| Nationality | British |
| Fields | Chemistry, earth science |
| Institutions | Independent researcher |
| Alma mater | University of Manchester London School of Hygiene & Tropical Medicine University of London Harvard Medical School |
| Known for | Electron capture detector Gaia hypothesis |
| Notable awards | FRS, 1974 Tswett Medal, 1975 ACS, 1980 WMO Norbert Gerbier Prize, 1988 Dr A.H. Heineken Prize for the Environment, 1990 CBE, 1990 Volvo Environment Prize, 1996 CH, 2003 Wollaston Medal[2], 2006 Arne Naess Chair in Global Justice and the Environment [3], 2007 |
James Lovelock, CH, CBE, FRS (born 26 July 1919) is an independent scientist, environmentalist and futurologist who lives in Devon, England. He is best known for proposing the Gaia hypothesis, which postulates that the biosphere is a self-regulating entity with the capacity to keep our planet healthy by controlling the chemical and physical environment.
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James Ephraim Lovelock was born in Letchworth Garden City in Hertfordshire, England, to working class parents who were strong believers in education. Nell, his mother started work at 13 in a pickle factory. His father, Tom, had served six months hard labour for poaching in his teens and was illiterate until attending technical college. The family moved to London where his dislike of authority made him, by his own account, an unhappy pupil at Strand School.[1] Lovelock could not afford to go to university after school, something which he believes helped prevent him becoming over-specialized and aided the development of Gaia theory. He worked at a photography firm, attending Birkbeck College during the evenings, before being accepted for chemistry at the University of Manchester although he could only pay for two years of the three-year course. Lovelock worked at a Quaker farm before a recommendation from his professor led to him taking up a Medical Research Council post[2] working on ways of shielding soldiers from burns. Lovelock refused to use the shaved and anaesthetised rabbits that were used as burn victims, and exposed his own skin to heat radiation instead, an experience he describes as "exquisitely painful".[3] His student status enabled temporary deferment of military service during the Second World War, but he registered as a conscientious objector.[4] He later abandoned this position in the light of Nazi atrocities and tried to enlist for war service, but was told that his medical research was too valuable for this to be considered. In 1948 Lovelock received a Ph.D. degree in medicine at the London School of Hygiene and Tropical Medicine. Within the United States he has conducted research at Yale, Baylor College of Medicine, and Harvard University.[2]
A lifelong inventor, Lovelock has created and developed many scientific instruments, some of which were designed for NASA in its program of planetary exploration. It was while working as a consultant for NASA that Lovelock developed the Gaia Hypothesis, for which he is most widely known.
In early 1961, Lovelock was engaged by NASA to develop sensitive instruments for the analysis of extraterrestrial atmospheres and planetary surfaces. The Viking program, that visited Mars in the late 1970s, was motivated in part to determine whether Mars supported life, and many of the sensors and experiments that were ultimately deployed aimed to resolve this issue. During work on a precursor of this program, Lovelock became interested in the composition of the Martian atmosphere, reasoning that many life forms on Mars would be obliged to make use of it (and, thus, alter it). However, the atmosphere was found to be in a stable condition close to its chemical equilibrium, with very little oxygen, methane, or hydrogen, but with an overwhelming abundance of carbon dioxide. To Lovelock, the stark contrast between the Martian atmosphere and chemically dynamic mixture of that of our Earth's biosphere was strongly indicative of the absence of life on the planet.[5] However, when they were finally launched to Mars, the Viking probes still searched (unsuccessfully) for extant life there.
Lovelock invented the electron capture detector, which ultimately assisted in discoveries about the persistence of CFCs and their role in stratospheric ozone depletion.[6][7][8] After studying the operation of the Earth's sulfur cycle,[9] Lovelock and his colleagues developed the CLAW hypothesis as a possible example of biological control of the Earth's climate.[10]
Lovelock was elected a Fellow of the Royal Society in 1974. He served as the president of the Marine Biological Association (MBA) from 1986 to 1990, and has been a Honorary Visiting Fellow of Green Templeton College, Oxford (formerly Green College, Oxford) since 1994. He has been awarded a number of prestigious prizes including the Tswett Medal (1975), an ACS chromatography award (1980), the WMO Norbert Gerbier Prize (1988), the Dr A.H. Heineken Prize for the Environment (1990) and the RGS Discovery Lifetime award (2001). In 2006 he received the Wollaston Medal, the Geological Society's highest Award, whose previous recipients include Charles Darwin [4]. He became a CBE in 1990, and a Companion of Honour in 2003.
An independent scientist, inventor, and author, Lovelock works out of a barn-turned-laboratory on the Devon/Cornwall border.
After the development of his electron capture detector, in the late 1960s, Lovelock was the first to detect the widespread presence of CFCs in the atmosphere.[6] He found a concentration of 60 parts per trillion of CFC-11 over Ireland and, in a partially self-funded research expedition in 1972, went on to measure the concentration of CFC-11 from the northern hemisphere to the Antarctic aboard the research vessel RRS Shackleton.[7][12] He found the gas in each of the 50 air samples that he collected but, not realising that the breakdown of CFCs in the stratosphere would release chlorine that posed a threat to the ozone layer, concluded that the level of CFCs constituted "no conceivable hazard".[12] He has since stated that he meant "no conceivable toxic hazard".
However, the experiment did provide the first useful data on the ubiquitous presence of CFCs in the atmosphere. The damage caused to the ozone layer by the photolysis of CFCs was later discovered by Sherwood Rowland and Mario Molina. After hearing a lecture on the subject of Lovelock's results,[13] they embarked on research that resulted in the first published paper that suggested a link between stratospheric CFCs and ozone depletion in 1974, and later shared the 1995 Nobel Prize in Chemistry (with Paul Crutzen) for their work.[14]
First formulated by Lovelock during the 1960s as a result of work for NASA concerned with detecting life on Mars,[15] the Gaia hypothesis proposes that living and non-living parts of the Earth form a complex interacting system that can be thought of as a single organism.[16][17] Named after the Greek goddess Gaia at the suggestion of novelist William Golding,[12] the hypothesis postulates that the biosphere has a regulatory effect on the Earth's environment that acts to sustain life.
While the Gaia hypothesis was readily accepted by many in the environmentalist community, it has not been widely accepted within the scientific community. Among its more famous critics are the evolutionary biologists Richard Dawkins, Ford Doolittle, and Stephen Jay Gould – notable, given the diversity of this trio's views on other scientific matters. These (and other) critics have questioned how natural selection operating on individual organisms can lead to the evolution of planetary-scale homeostasis.[18]
Lovelock has responded to these criticisms with models such as Daisyworld, that illustrate how individual-level effects can translate to planetary homeostasis, under the right circumstances.
Lovelock has become concerned about the threat of global warming from the greenhouse effect. In 2004 he caused a media sensation when he broke with many fellow environmentalists by pronouncing that "only nuclear power can now halt global warming". In his view, nuclear energy is the only realistic alternative to fossil fuels that has the capacity to both fulfill the large scale energy needs of humankind while also reducing greenhouse emissions. He is an open member of Environmentalists for Nuclear Energy.
In 2005, against the backdrop of renewed UK government interest in nuclear power, Lovelock again publicly announced his support for nuclear energy, stating, "I am a Green, and I entreat my friends in the movement to drop their wrongheaded objection to nuclear energy".[19] Although these interventions in the public debate on nuclear power are recent, his views on it are longstanding. In his 1988 book The Ages of Gaia he states:
"I have never regarded nuclear radiation or nuclear power as anything other than a normal and inevitable part of the environment. Our prokaryotic forebears evolved on a planet-sized lump of fallout from a star-sized nuclear explosion, a supernova that synthesised the elements that go to make our planet and ourselves."[12]
In The Revenge of Gaia[20] (2006), where he puts forward the concept of sustainable retreat, Lovelock writes:
"A television interviewer once asked me, 'But what about nuclear waste? Will it not poison the whole biosphere and persist for millions of years?' I knew this to be a nightmare fantasy wholly without substance in the real world... One of the striking things about places heavily contaminated by radioactive nuclides is the richness of their wildlife. This is true of the land around Chernobyl, the bomb test sites of the Pacific, and areas near the United States' Savannah River nuclear weapons plant of the Second World War. Wild plants and animals do not perceive radiation as dangerous, and any slight reduction it may cause in their lifespans is far less a hazard than is the presence of people and their pets... I find it sad, but all too human, that there are vast bureaucracies concerned about nuclear waste, huge organisations devoted to decommissioning power stations, but nothing comparable to deal with that truly malign waste, carbon dioxide."
In James Lovelock's 2006 book, The Revenge of Gaia, he argues that the lack of respect humans have had for Gaia, through the damage done to rainforests and the reduction in planetary biodiversity, is testing Gaia's capacity to minimize the effects of the addition of greenhouse gases in the atmosphere. This eliminates the planet's negative feedbacks and increases the likelihood of homeostatic positive feedback potential associated with runaway global warming. Similarly the warming of the oceans is extending the oceanic thermocline layer of tropical oceans into the Arctic and Antarctic waters, preventing the rise of oceanic nutrients into the surface waters and eliminating the algal blooms of phytoplankton on which oceanic foodchains depend. As phytoplankton and forests are the main ways in which Gaia draws down greenhouse gases, particularly carbon dioxide, taking it out of the atmosphere, the elimination of this environmental buffering will see, according to Lovelock, most of the earth becoming uninhabitable for humans and other life-forms by the middle of this century, with a massive extension of tropical deserts.
In his most recent book, "The Vanishing Face of Gaia",[21] he rejects scientific modelling that disagrees with the scientific findings that sea levels are rising faster, and Arctic ice is melting faster, than the models predict and he suggests that we may already be beyond the tipping point of terrestrial climate into a permanently hot state. Given these conditions, Lovelock expects human civilization will be hard pressed to survive. He expects the change to be similar to the Paleocene-Eocene Thermal Maximum when atmospheric concentration of CO2 was 450 ppm. At that point the Arctic Ocean was 23 °C and had crocodiles in it,[22][23] with the rest of the world mostly scrub and desert.
Writing in the British newspaper The Independent in January 2006, Lovelock argues that, as a result of global warming, "billions of us will die and the few breeding pairs of people that survive will be in the Arctic where the climate remains tolerable" by the end of the 21st century.[24] He has been quoted in The Guardian that 80% of humans will perish by 2100 AD, and this climate change will last 100,000 years. According to James Lovelock, by 2040, the world population of more than six billion will have been culled by floods, drought and famine. Indeed "[t]he people of Southern Europe, as well as South-East Asia, will be fighting their way into countries such as Canada, Australia and Britain".[25]
"If you take the Intergovernmental Panel on Climate Change predictions, then by 2040 every summer in Europe will be as hot as it was in 2003 – between 110F and 120F. It is not the death of people that is the main problem, it is the fact that the plants can't grow – there will be almost no food grown in Europe."[25]
"We are about to take an evolutionary step and my hope is that the species will emerge stronger. It would be hubris to think humans as they now are God's chosen race."[25]
He further predicts, the average temperature in temperate regions will increase by as much as 8°C and by up to 5°C in the tropics, leaving much of the world's land uninhabitable and unsuitable for farming, with northerly migrations and new cities created in the Arctic. He predicts much of Europe will become uninhabitable having turned to desert and Britain will become Europe's "life-raft" due to its stable temperature caused by being surrounded by the ocean. He suggests that "we have to keep in mind the awesome pace of change and realise how little time is left to act, and then each community and nation must find the best use of the resources they have to sustain civilisation for as long as they can".[24]
He partly retreated from this position in a September 2007 address to the World Nuclear Association's Annual Symposium, suggesting that climate change would stabilise and prove survivable, and that the Earth itself is in "no danger" because it would stabilise in a new state. Life, however, might be forced to migrate en masse to remain in habitable climes.[26] In 2008, he became a patron of Population Matters, (formerly known as the Optimum Population Trust), which campaigns for a gradual decline in the global human population to a sustainable level.[27]
In a March 2010 interview with the Guardian newspaper, he said that democracy might have to be "put on hold" to prevent climate change.[28] He continued:
"Even the best democracies agree that when a major war approaches, democracy must be put on hold for the time being. I have a feeling that climate change may be an issue as severe as a war. It may be necessary to put democracy on hold for a while."
In September 2007, Lovelock and Chris Rapley proposed the construction of ocean pumps to pump water up from below the thermocline to "fertilize algae in the surface waters and encourage them to bloom".[29] The basic idea was to accelerate the transfer of carbon dioxide from the atmosphere to the ocean by increasing primary production and enhancing the export of organic carbon (as marine snow) to the deep ocean. A scheme similar to that proposed by Lovelock and Rapley is already being independently developed by a commercial company.[30]
The proposal attracted widespread media attention[31][32][33][34] and criticism.[35][36][37] Commenting on the proposal, Corinne Le Quéré, a University of East Anglia researcher, said "It doesn’t make sense. There is absolutely no evidence that geoengineering options work or even go in the right direction. I’m astonished that they published this. Before any geoengineering is put to work a massive amount of research is needed – research which will take 20 to 30 years".[31] Other researchers have claimed that "this scheme would bring water with high natural pCO2 levels (associated with the nutrients) back to the surface, potentially causing exhalation of CO2".[37] Lovelock subsequently said that his proposal was intended to stimulate interest and research would be the next step.[38]
The National Portrait Gallery collection has two photographic portraits of James Lovelock by Nick Sinclair (1993) and Paul Tozer (1994).[39] The archive of the Royal Society of Arts has a 2009 image taken by Anne-Katrin Purkiss.[40] Lovelock agreed to sit for sculptor Jon Edgar in Devon during 2007, as part of The Environment Triptych (2008)[41] along with heads of Mary Midgley and Richard Mabey. A bronze head[42] is in the collection of the sitter and the terracotta is in the archive of the artist.