Waning Oil part 1
Abbreviated from Empty Plates Tomorrow
(Over)confidence in technology
“The facts about our energy resources are sobering. The rapidity with which we are finding ways of spending that energy, often without realizing it, is shocking. The problems attendant in tapping unused reservoirs of energy are discouraging. Just the same, no one should say that man’s standard of living is likely to toboggan for lack of energy – cheap energy. This optimism comes not from a blind faith in the scientist and engineer but, instead, from an infinite confidence, supported by a long record of the past, that man’s ingenuity is equal to the task.”
– Charles A Scarlott, writing in Man’s Role in Changing the Face of the Earth, published in 1956.[i]
This quotation from Man’s Role in Changing the Face of the Earth reflects the confidence in technology that characterised the middle years of the twentieth century. Charles Scarlott was, at the time, manager of technical information services in the public relations department of the Stanford Research Institute, Menlo Park, California. From the perspective of the first decade of the 21st century, the words ‘information services’ and ‘public relations’ themselves sound warning bells. Mr Scarlott was very well aware of rapidly rising energy use, even back in the 1950s, but trusted to the human mind to invent new, cheap and plentiful forms of energy, and policymakers by and large accepted this rosy vision.
It hasn’t happened yet.
Petroleum, gas and coal are organic products of past aeons.[ii] Petroleum is a mix of hydrocarbons*, oxygen, nitrogen, sulphur and other chemical elements, originally organic matter – phytoplankton and zooplankton – that has been transformed by bacteria, by heat and by pressure, over millions of years. Natural gas is predominately methane, mixed with ethane, butane and propane. Methane, CH4, is a by-product of rotting vegetation. Butane and propane are more complex gases than methane, but like methane are alkanes, the ‘paraffin’ group of hydrocarbons. Coal, a solid hydrocarbon in gradations from lignite at 70 to 80 per cent carbon to anthracite at over 90 per cent carbon, is compressed ancient former living matter, typically large ferny plants.
Hydrocarbons drove the explosion in agricultural productivity in the 1950s, 60s, and 70s. Natural gas is the chief feedstock for nitrogen fertiliser manufacture. Irrigation, pesticide production and mechanised cultivation are fuelled by oil. Lavish use of hydrocarbons gives the illusion of limitless potential growth in food production, an illusion that permeates all forms of economic activity.
Yet the energy that powers non-essential ventures, such as extravagant leisure complexes, will soon be needed for more basic survival purposes, notably food production. An indoor ski centre in the oil state of Dubai opened in December 2005. It is 85 metres high, covers 22,500 square metres, and has five slopes, the longest 400 metres with a 60-metre fall. The temperature inside is –1 to –2 degrees C (28 to 30 degrees F) all the time, when outside it may be over 50 degrees C (more than 120 degrees F). The annual electricity consumption will be staggering. The SkiDubai dome, owned by the Majid Al Futtaim Group, is at the extreme end of energy-hungry leisure and tourism ventures that have no purpose other than entertainment – perhaps a valid undertaking from the perspective of the individual company, but dubious in the context of uncertain world energy supplies.
Losing the land
Energy-guzzling agriculture degrades whole environments. In the USA, the world’s most careless energy consumer, these are some of the consequences:
● On the central prairies, topsoil is eroding 30 times faster than natural processes can create it.
● The cropland acreage declines by around three million acres a year. Two million areas are lost to waterlogging, erosion and pollution. A million acres more succumb to roads, suburbs, shopping malls, and industrial developments.[iii] Three million acres is 4,688 square miles, 0.13 per cent of the whole land area of the United States, lost each year. That is an area three-fifths the size of Wales, or larger than the whole of Gambia or Jamaica.
● Irrigation for agriculture (often using electric or diesel-powered pumps[iv]) is depleting aquifers. Several vital aquifers in the USA’s southern states may be useless by the mid 21st century.
By the mid 1990s, the food eaten by the typical American every year had devoured the equivalent of 400 gallons of oil[v] on the way to the plate or take-away carton. Food production in the USA uses up about 10 times more energy than is contained in the final product. Before the industrial revolution, food depended on the sunlight, which made plants grow to feed people directly, or indirectly via other species of animals feeding on the plants. People increased the productivity of plants and animals by selective breeding, and by organised cultivation and animal husbandry, and they spread animal waste, in the form of farmyard manure, to improve the soil. Farming this way was labour-intensive. One person’s direct labour might yield sufficient food to feed three or four other people, but one person could not feed a village, let alone a small town — until fossil fuels formed a temporary, one-time-only army.
Britain’s gas habit
Energy consumption in the UK is still rising, and in 2004 was 6.4 per cent more than in 1995: 235.6 million tonnes of oil equivalent* compared with 221.5 million. Natural gas fired the increase, usage rising from 32.4 per cent of total consumption in 1995, to 41.5 per cent in 2004. Natural gas is of course finite, despite its reassuring name. Renewable fuels contributed only a tiny amount, 0.2 per cent – the same as in 1995.[vi]
Energy consumption in the UK, 1995 and 2004
Percentage of inland energy consumption, primary fuel input, not seasonally adjusted.
|
|
1995 |
2004 |
|
Petroleum |
34.2 |
32.6 |
|
Natural gas |
32.4 |
41.5 |
|
Coal |
23.0 |
17.6 |
|
Nuclear |
9.6 |
7.8 |
|
Wind and water |
0.2 |
0.2 |
|
|
|
|
|
Net imports |
0.6 |
0.3 |
|
|
|
|
|
TOTAL Million tonnes oil equivalent |
221.5 |
235.6 |
Source: Calculated from table 1.2 in Digest of UK Energy Statistics 2005, from the Department of Trade and Industry.
About a third of Britain’s energy supply is converted into electricity. Most electricity in the UK is generated in power stations fuelled by coal or natural gas. Forty per cent of electricity TWh (terawatt[vii] hours) are fuelled by natural gas, coal generates another 33 per cent, and nuclear energy about a quarter. Just one per cent of British electricity is from renewable hydro power, and the amount of hydro power generated has actually fallen since 1980. The UK’s national grid infrastructure is at the end of its planned 40-year life. Many power stations are inefficient, and the nuclear plants are nearing the end of their lives. The margin between production capacity and peak demand has become wafer thin.
By 2020 electricity supply could be 40 per cent below the peak demand experienced in the early 21st century, a gap of some 2,000 megawatts* (MW).[viii] London and the South East already produce only about half of the electricity the two regions consume, and are dependent on the national grid transferring supply from other regions. By 2023, only three per cent of the UK’s electricity – at 2005 consumption levels — will come from nuclear power, unless there is a major new building programme. Coal deposits could, if used wisely, help the switch from an oil- and gas-dependent economy to a more sustainable future, but of course Mrs Thatcher’s governments, from 1979 to 1990, closed most of the mines.
The UK became a net importer of gas in 2004. New Labour, waking up too late to the decline in natural gas output from the North Sea, saw two ways to salvation: the construction of storage terminals for imported gas, and a new generation of nuclear power stations. A gas terminal on Kent’s Isle of Grain came into use in 2005, and in 2006 storage tanks for liquefied natural gas were under construction at Milford Haven, Pembrokeshire. The capacity of the pipelines carrying gas from Norway and via Belgium was being enlarged.
The Department of Trade and Industry’s energy review, launched late in January 2006, was on the face of it an opportunity for a searching public debate on the energy choices ahead. Even while the review was in progress, though, Tony Blair was dropping hints that the government had already decided to build a new generation of nuclear power stations. The previous policy was for both nuclear and coal-generated electricity to be well on the way out by 2020, to be replaced mainly by gas and to a lesser extent by oil. This strange plan took no account of the reality that fossil fuels are finite.[ix]
Energy companies everywhere are desperately searching for more oil, more gas. The nations that have large proven reserves are flashpoints for future conflicts that could interrupt the global food trade, and increase hunger.
[i] Charles A Scarlott, writing in Man’s Role in Changing the Face of the Earth (p.1021), edited by William L Thomas Jr and published by the University of Chicago Press in 1956.
[ii] Some scientists suggest that inorganic oil also exists, but hypotheses are at an early stage. See the ‘False Dawns’ chapter.
[iii] Figures from Food, Land, Population and the US Economy, by David Pimental and Mario Giampietro. Carrying Capacity Network, November 21st 1994. Quoted by Dale Allen Pfeiffer in Eating Fossil Fuels, The Wilderness Publications, 2003.
[iv] Solar-powered irrigation pumps are a promising development from an energy point of view, although they do not change the rate of water depletion.
[v] Figure from Food, Land, Population and the US Economy, by David Pimental and Mario Giampietro. Carrying Capacity Network, November 21st 1994. Quoted by Dale Allen Pfeiffer in Eating Fossil Fuels, The Wilderness Publications, 2003.
[vi] The data is from table 1.2 in the Digest of UK Energy Statistics 2005, from the Department of Trade and Industry. The website www.earth-policy.org is a good source of statistics on unnecessary energy consumption. http://earthtrends.wri.org is another, and so is Friends of the Earth, www.foe.co.uk.
[vii] A terawatt is one million megawatts. A megawatt is a million watts. A watt is the power expended for one joule of work in one second. The UK used 382.7 TWh — 382.7 million MWh – of electricity in 2004, 44 per cent more than in 1980.
[viii] See ‘Wave, wind, sun and tide is a powerful mix’ by Oliver Tickell, The Guardian, May 12th 2005.
[ix] Paul Mobbs analyses weak links in the power chain in his article ‘Get the candles in’, on the Free Range Network, September 2005, www.fraw.org.uk/pubs/frb/frb-05_01.html Paul Mobbs is the author of Energy Beyond Oil.