Peak Oil and Climate Change

Transcription

1 Peak Oil and Climate Change AS222d 20 May Mary Gates James W. Murray School of Oceanography ~$10/b University of Washington ~$147/b IEA World Energy Outlook - Nov 2008 (NEW) The world s energy system is at a crossroads. Current global trends in energy supply and consumption are patently unsustainable environmentally, economically, socially. What is needed is nothing short of an energy revolution. with special acknowledgement to David Rutledge (Cal Tech)

2 Conclusions Evidence is strong suggesting that we are reaching the time when the supply of fossil fuel energy (oil + gas + coal) will not meet the demand. Peak Oil has occurred or will occur soon. Why? existing oil fields are declining at ~5-7% New discoveries are not keeping up. Coal Reserves may be significantly less than assumed by the IPCC. Implication - For the way we live (The End of Surburbia) - For CO2 Production and Global Warming We know enough to see that Resource Limitation needs to be an IPCC Scenario

3 Background geology: Source rocks (Marine Carbon - plankton), Migration from source rocks to reservoir rocks Oil and Gas Traps

4 Requirements for oil and gas to occur. Almost all of the world has been considered. When an area of the world is shown as unexplored for oil it is because geologists have decided that it is not prospective

5 Outline The 4 th UN IPCC Assessment Report SRES Scenarios Oil Reserves Hubbert s peak The history of US oil production How much oil and gas will the world produce? The Coal Question Discussion Future carbon-dioxide levels and temperatures Summary

6 The UN Panel on Climate Change (IPCC) The UN Intergovernmental Panel on Climate Change publishes assessment reports that reflect the scientific consensus on climate change The 4 th report was released in 2007 Over one thousand authors Over one thousand reviewers Nobel Prize Updated measurements show that the global temperature is rising C per year for the last 50 years Report discusses climate simulations for fossil-fuel carbonemission scenarios There are 40 scenarios, each considered to be equally valid, with story lines and different government policies, population projections, and economic models

7 Oil Production in the IPCC Scenarios Annual Oil Production, Gb A1 AIM A1 Image A1 Minicam A1C AIM A1C Minicam A1G Message A1V1 Minicam A1T AIM A1T Maria A2 AIM A2 Message A2-A1 Minicam B1 AIM B1 Message B1 Minicam B1High Message B2 Message B2 ASF B2 Maria B2High Minicam A1 ASF A1 Message A1 Maria A1C Message A1G AIM A1G Minicam A1V2 Minicam A1T Message A2 ASF A2G Image A2 Minicam B1 Image B1 ASF B1 Maria B1T Message B1High Minicam B2 AIM B2 Image B2 Minicam B2C Maria Gb = billions of barrels 1 barrel = 42 gallons = 159 liters In 13 scenarios, oil production is still rising in 2100 In none of the scenarios did oil production decrease because of resource limitation. None consider Peak Oil! Oil production is never going to be more than today. 7

8 CO 2 emission Scenarios Annual Fossil-Fuel CO2 Emissions, GtC A1 AIM A1 Image A1 Minicam A1C AIM A1C Minicam A1G Message A1V1 Minicam A1T AIM A1T Maria A2 AIM A2 Message A2-A1 Minicam B1 AIM B1 Message B1 Minicam B1High Message B2 Message B2 ASF A1 ASF A1 Message A1 Maria A1C Message A1G AIM A1G Minicam A1V2 Minicam A1T Message A2 ASF A2G Image A2 Minicam B1 Image B1 ASF B1 Maria B1T Message B1High Minicam B2 AIM B2 Image B2 Maria B2High Minicam B2 Minicam B2C Maria From Oil + Gas + Coal These Scenarios drive almost all climate change research

9 What is Peak Oil? It s not about Reserves! It s all about the Production Rate! We are not close to running out or oil

10 OPEC Oil Proven Reserves! Proved Reserves, Gb Saudi Iran Iraq Kuwait UAE Not proven by anybody! 430Gb rise in reserves, no adjustment for 193Gb produced since 1980 These questionable reserves are 45% of world oil reserves used by IPCC! A recent leak of Kuwait Petroleum Company documents showed the actual reserves are only 48Gb (official reserves are 102Gb) 1980 Kuwait reserves adjusted for production since then are 55Gb From BP Statistical Review Gb = billions of barrels

11 M. King Hubbert Geophysicist at the Shell lab in Houston In 1956, he presented a paper with predictions for the peak year of US oil production

12 A model normal distribution Oil Fields Peak --- Regions Peak --- The World will peak Everyone agrees that world oil will peak controversy on the date

13 Examples: Rapid Depletion is Normal

14 IEA (2008) World Oil Fields are declining at -6.7% per year

15 Typo: Million! US Oil Consumption today is about 20 million barrels of oil/day ANWAR will not save us!

16 Hubbert s Peak From his 1956 paper Hubbert drew bell-shaped curves by hand, and added up barrels by counting squares For the larger estimate, he predicted a peak in 1970 Hubbert has been much criticized there is no consideration of supply and demand curves, prices, or policy, and new technologies

17 Case Study: Apply the Principals of Hubbert s Model to the US to see how this works

18 US Crude Oil Production Production is bell shaped, like the curves Hubbert drew Average price after the peak is 2.6 times higher than before 18

19 Hubbert s Model P = annual production Q = cummulative production to some year Plot P/Q versus Q From 1958 onward negative trend Oil from Lower 48 US States Data from EIA Web Site

20 The Logistic Curve or Rate Plot P/Q = mq + a Q for which P/Q = 0 is 198 gigabarrels of oil. Also called Q t (maximum cumulative production) Half of this is 99 which occurred in 1973 A model for exponential growth in a finite system

21 Another Approach: Cumulative Oil Production 225Gb ultimate 200 Cumulative Production, Gb % exhausted in Includes 48 + Alaska 31Gb remaining USGS/MMS assessment 189Gb EIA data from 1859 Fit for cumulative normal gives the ultimate production and the time for 90% exhaustion

22 Historical Projections for US Oil McKelvey Hubbert Small circles are private estimates, large circles are government Private median is 230Gb, government median is 433Gb USGS = US Geological Survey (McKelvey, 1963; Gautier 1995) MMS = Mineral Management Service 22

23 Why don t we just drill more. What about new technologies?? 1999 to 2008: Number of rigs tripled Annual price of oil increased 5x Yet US oil production decreases from 6 mb/d to 5 mb/d

24 Can we apply this approach to estimate ultimate global oil production? Have we reached Global Peak Oil?

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26 Maximum Cumulative Production (Q t ) Will Be 2165 Gigabarrels ½ Q t = 1083 Gb

27 The corresponding fit of the normal curve to the data

28 Historical Fits for World Oil and Gas Ultimate Cumulative Rutledge fit for ultimate production is 641Gtoe Maximum cumulative through 2100 for an IPCC scenario is 2,600Gtoe 28

29 Rate Plot for World Oil and Gas Growth Rate for Cumulative. 6% 4% 2% Cumulative Production, Tboe Fit is 3.2Tboe Remaining Reserves are 2.6Tboe 90% exhausted in 2070 Oil + natural gas + natural gas liquids like propane and butane Tboe = trillion barrels of oil equivalent UN IPCC scenarios assume 11-15Tboe is available

30 Who are the experts that IPCC turn to? Energy Information Agency (EIA) - DOE International Energy Agency (IEA) Paris US Geologocal Survet (USGS) - Washington Their models for future emissions are driven by demand (not supply). EIA, IEA and IPCC assume that supply will meet demand The EIA forecasts in 2008 projects a 30% increase in oil production between now and 2030 (from 85 to 97 mb/d) ( = +12 mbd). The hard truth is that increasing energy supply at all will be difficult. To have growth we need to balance decline of exisiting fields with discovery of new oil

31 Existing Oil Fields are in Decline Existing oil fields are declining at -6% per year (Exxon Mobile). -4.5% per year (CERA) -8% per year (ASPO) - 6.7% per year (IEA 2008) For 2005 to 2030 the world needs 45 mbd of new production just to maintain flat production The projected growth requires discovery of = 57 mbd of new oil! 57 9 = ~6+ new Saudi Arabias

32 Urban Legend we can drill more to get more oil Oil discoveries have been declining since 1964 The red box shows the average amount estimated to be discovered by the USGS each year between 1995 and The world s oil provinces have been well explored. Future discoveries will be limited to smaller structures and deeper formations

33 Economists say as price goes up, more oil will be produced Elasticity has become virtually zero. It s a market where supply rules. from Kenneth Deffeyes

34 What about coal? There are supposed to be hundreds of years of supply of coal! Big 3 Reserves: US (27%) Remarkably the data-quality is very poor globally Russia (17%) but especially for China and SE Asia and FSU China (13%) then India, Australia, South Africa

35 Can we apply Hubbert approach to coal? Höök et al (2008)

36 We also have a big problem with coal. The Reserves may not be as large as We ve been led to believe. "Present estimates of coal reserves are based upon methods that have not been reviewed or revised since their inception in 1974, and much of the input data were compiled in the early 1970s. Recent programs to assess reserves in limited areas using updated methods indicate that only a small fraction of previously estimated reserves are actually minable reserves." from the National Academy of Sciences Report on Coal, June, 2007

37 Another Problem is Energy Content Types of coal (four types different energy content) Anthracite (30 MJ/kg) Bituminous (18 29 MJ/kg) Sub-bituminous (8-25 MJ/kg) Lignite (5-14 MJ/kg) The high energy coal is running short US passed peak anthracite in 1950 peak bituminous in 1990 Total energy content of US coal peaked in 1998 Total energy content of world coal should peak in 2025

38 UK Coal Production Mt = millions of metric tons Production is now 16 times less than the peak, while the average price after the peak is 2.4 times higher than before In 1913, Britain exported 27% of its production, now it imports 74% of the coal it burns 38

39 Rate Plot for British Coal Rate plot does not curve, fit to a logistic rather than normal 39

40 Projections vs Reserves for World Coal Region Projection Gt Reserves Gt Eastern US Western US w/o Montana Montana 68 Central and South America 16 China South Asia 68 Australia and New Zealand Former Soviet Union Europe Africa World (at 3.6boe/t) 435 (1.6Tboe) 903 UN IPCC scenarios assume 18Tboe is available for production from D. Rutledge

41 Where Does the IPCC Get Its Coal Numbers? World Energy Council survey Proved recoverable reserves, Gt Additional recoverable reserves, Gt , , , The scenario report SRES (2000) references the 1995 and 1998 WEC surveys Downward trend in proved recoverable reserves was noted by Werner Zittel and Jorg Schindler of the German Energy Watch Group trend toward reporting recoverable coal and coal at working mines The IPCC chose to use additional recoverable reserves and they also chose 1998 (3,368Gt) instead of 1995 (680Gt) (Deffeyes Law) additional 41 recoverable reserves are now 19 times smaller than in 1998

42 Coal Resources for the IPCC Scenarios (Tboe), from Nakicenovic Rutledge projection IPCC Maximum scenario use to 2100 IPCC Reserves Identified Recoverable with technological progress 1.3 (at 3.6boe/t) WEC Proved Recoverable Reserves Additional Recoverable Reserves IPCC scenario coal resources are based on WEC survey categories IPCC resources have not been adjusted for the new WEC surveys 42

43 Many independent groups are coming to the same conclusion Uppsala Kjell Aleklett Peak Coal in 2030 (examples follow) Energy Watch Group (EWG-Germany) Peak Coal in Institute of Energy (IFE) Kavakov and Peteves (2007) The Future of Coal Richard Heinberg Post Carbon Institute (book in progress)

44 Historical fits for Oil, Gas, and Coal Reserves BP for oil and gas WEC for coal Ultimate Fits for ultimate Half Way 2019 Projection Cumulative oil, gas, and coal Projection Cumulative coal 44

45 Future Fossil-Fuels Production Cumulative Production, Tboe % in Tboe fossil fuels remaining 1.6Tboe coal remaining

46 Comparing with the IPCC Scenarios Cumulative Future Fossil-Fuel. CO2 Emissions, GtC. 2,000 1,000 Projection This projection has lower emissions than any of the 40 IPCC scenarios This is still true even with full coal reserves

47 MAGICC Simulations for CO2 and Temperature Written by Tom Wigley at the National Center for Atmospheric Research (NCAR) in Colorado This program has been used in the IPCC assessments Simulation parameters IPCC most likely value temperature sensitivity: 3 C/2 CO2 concentration ( likely range is 2.0 to 4.5) Aslam Khalil s recent measurements for CH4 equilibrium concentration: 1,750ppb Tom Wigley s P50 values (IPCC scenario medians) for other greenhouse gases: deforestation CO2, N2O, NOx, VOCs, SO2, C2F6, HFCs, SF6 Our projection for CO2 emissions from oil, gas, and coal burning. 47

48 Carbon-Dioxide Levels Fossil-Fuel CO2 Emissions, GtC ppm 440ppm Projection 50% Stretch-out for Fossil Fuel Burning Simulations with the program MAGICC from Tom Wigley at the National Center for Atmospheric Research (NCAR) in Boulder This program was used in the earlier UN IPCC Assessment Reports profiles that come with the program are modified to use our projection for fossil-fuel emissions profiles are business-as-usual for other greenhouse gases CO2 Concentration, ppm.

49 Simulated Temperature Rises 49

50 Conclusions: 1) Supply Limitation will be serious Existing scenarios and energy policies are based on emissions - not supply 2) Coal is thought of as a solution to energy needs This will be a disaster for climate change without CO 2 sequestration. Is CO 2 sequestration realistic? 3) Energy will pass climate change as the hot button issue We have to get our energy plan in order before we can move forward on climate change 4) Energy Supply will Buffer Economic recovery Recessions correl;ate with price rise 5) Security Issue: Seven nations control 75% of world s oil exports. There will be shifts in global power and wealth Once it is clear that oil production has peaked is there are reason to believe that exports will not be limited?

51 Social tensions are starting to emerge. Largely unnoticed in America are the increasingly frequent electricity shortages developing around the world. There is a new web site devoted to keeping track of them (n=103) Demand is outstripping supply and the poor countries are feeling the impacts first.

52 Important Reading that will change your outlook Matt Simmons (2005) Twilight in the Desert James Kunstler (2005) The Long Emergency Jeff Rubin (2009) Why the World is About to get a Whole Lot Smaller: Oil and The End of Globalization Important web-site

53 Energy as a buffer on economic growth James Hamilton (UCSD) Recessions generally correlate with the price of oil. If energy expenditures rise faster than income, then the share of income for other things must decline Oil Expenditures as a % of GDP

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