Key World Energy Statistics

Key statistics on the supply, transformation and consumption of all major energy sources

Key World Energy Statistics (KWES) is the IEA's introduction to energy data and statistics, including energy indicators, energy balances, prices, RDD budgets, CO2 emissions and forecasts. Explore the highlights below or download KWES as a PDF.


CO2 emissions

When talking about CO2 emissions and energy, we normally refer to CO2 emissions resulting from the combustion of fuel for energy purposes, such as burning natural gas to produce electricity. This does not include fugitive emissions, which means any CO2 lost during production, distribution or transformation of a fuel. It also excludes fossil fuel use for non-energy purposes, such as in the manufacture of petrochemicals.


World CO2 emissions from fuel combustion by fuel, Mt of CO2

	Coal	Oil	Natural gas	Other
1971	5229.085241	6670.851406	2044.085875	1.172458
1972	5305.835001	7159.575436	2152.774531	1.678026
1973	5506.132107	7718.969988	2233.51547	1.63914
1974	5535.728349	7600.646809	2285.656301	4.712492
1975	5647.634111	7583.886251	2249.939049	5.252936
1976	5876.794934	8057.324565	2370.721117	5.380374
1977	6060.189985	8366.859464	2430.418338	5.966826
1978	6218.911688	8629.858864	2509.465041	5.954709
1979	6492.870462	8729.444925	2654.410599	6.138628
1980	6601.191038	8391.177969	2709.729771	6.529353
1981	6659.189143	8068.497385	2743.879368	6.447444
1982	6694.756257	7840.1104	2748.968989	7.72715
1983	6867.598527	7746.315487	2777.239756	8.229831
1984	7175.519428	7811.429898	2983.004231	9.15456
1985	7394.033045	7775.226626	3070.676094	9.386639
1986	7470.358363	7981.384925	3115.974266	11.558466
1987	7786.121096	8117.956505	3291.464108	11.34175
1988	8050.070766	8368.928259	3432.322548	13.244525
1989	8147.038602	8472.021545	3607.557545	15.845673
1990	8297.615902	8497.409093	3679.465296	43.74269
1991	8251.084422	8531.151031	3801.06432	56.015941
1992	8136.059273	8589.515049	3783.236596	74.222552
1993	8158.925535	8616.805006	3848.401881	72.336917
1994	8175.915795	8675.580282	3872.424913	76.698786
1995	8519.654929	8793.597733	3983.70832	82.624019
1996	8595.447694	9005.472576	4151.558967	73.457852
1997	8633.835453	9293.45071	4214.221581	80.280891
1998	8654.348363	9388.488357	4267.306137	78.795277
1999	8486.701526	9537.055966	4411.630282	88.216037
2000	8951.073585	9621.20751	4551.099379	100.00746
2001	9191.370581	9672.823826	4608.239909	100.282463
2002	9382.02941	9629.677878	4771.941889	111.019821
2003	10101.2237	9775.791158	4951.008379	104.868029
2004	10762.50071	10150.9593	5084.570885	108.258929
2005	11469.45081	10287.49335	5205.938947	106.816879
2006	12112.29853	10345.13764	5350.333328	116.570286
2007	12795.50082	10497.35972	5570.103865	116.693767
2008	12926.0859	10412.15033	5744.85228	119.840712
2009	12932.80207	10164.17357	5591.359512	126.871992
2010	13783.23103	10524.96657	6026.363309	155.312872
2011	14503.67433	10543.48337	6120.568021	170.550214
2012	14599.84327	10649.91861	6243.285143	176.178477
2013	14957.11931	10829.62983	6319.618385	181.409531
2014	14917.78082	10872.19883	6350.249936	187.579586
2015	14536.26147	11111.0311	6436.028258	192.718024
2016	14265.37825	11231.82916	6606.976576	212.031542
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Notes: world includes international aviation and international marine bunkers; CO2 emissions from fuel combustion are based on the IEA energy balances and on the 2006 IPCC Guidelines, and exclude emissions from non-energy; peat and oil shale are aggregated with coal; other includes industrial waste and non-renewable municipal waste.

World CO2 emissions from fuel combustion by region, Mt of CO2

	OECD	China	Non-OECD Americas	Non-OECD Asia	Africa	Non-OECD Europe and Eurasia	Middle East	Bunkers
1971	9343.954543	789.414457	337.546847	417.627883	249.026712	2188.17466	96.361631	523.088246
1972	9761.106142	840.95043	352.038333	438.441841	263.83882	2307.361847	106.085545	550.040041
1973	10290.39487	873.791824	390.050043	458.351545	285.482036	2459.602644	123.767199	578.816536
1974	10079.56349	892.73758	403.744572	481.020722	299.165486	2588.367288	136.466122	545.678688
1975	9757.695619	1040.216518	408.497528	511.826411	323.964178	2774.646034	154.869682	514.996378
1976	10316.60429	1083.936546	433.262035	541.623291	352.245535	2880.797358	175.496154	526.25577
1977	10548.72768	1227.472717	452.185405	573.738455	362.514815	2954.958461	202.125831	541.711241
1978	10668.00422	1387.247034	475.461617	598.004356	352.668773	3103.696099	228.178263	550.929938
1979	10917.94706	1410.451169	500.959199	646.747387	369.515595	3191.677067	277.018463	568.548683
1980	10583.6536	1378.436335	506.528724	687.505847	397.690634	3292.551915	303.065974	559.1951
1981	10318.50678	1372.42943	495.979762	718.52508	421.894919	3290.180112	326.576203	533.92106
1982	9986.513811	1430.579143	492.484591	750.233048	431.530937	3329.957341	362.321304	507.942625
1983	9915.517639	1504.556018	485.375804	793.119107	437.636966	3368.312089	403.999525	490.86645
1984	10236.6398	1640.690442	486.862767	834.373881	453.278	3412.284096	412.649011	502.330119
1985	10340.88232	1648.333315	484.281423	876.14692	465.719754	3465.648459	437.113409	531.196802
1986	10338.81397	1746.683777	514.76944	933.440304	471.074819	3557.266378	444.593786	572.63354
1987	10585.96983	1870.365306	533.472053	991.998319	499.671904	3663.859847	478.489641	583.05656
1988	10898.10185	2016.498679	547.899433	1058.528833	510.430053	3713.302674	506.2214	613.583181
1989	11055.49075	2087.729447	558.767287	1124.410533	522.544467	3723.704377	542.224224	627.592279
1990	11016.73355	2122.155917	553.453024	1208.398536	529.10702	3921.783499	535.950927	630.650512
1991	11053.43015	2237.106435	561.125345	1285.748699	533.882668	3778.809627	551.106983	638.105813
1992	11093.0187	2336.522014	574.484351	1334.781845	542.698543	3409.852225	616.773169	674.902627
1993	11183.70001	2543.92066	589.516084	1410.689329	551.347638	3086.927828	663.235789	667.131994
1994	11359.8664	2635.944089	613.153623	1488.275795	551.722	2727.110121	730.25479	694.292957
1995	11509.87982	2936.792274	652.686742	1615.124785	576.350581	2626.279832	743.912707	718.558267
1996	11883.73269	2907.214746	694.358425	1700.414446	598.61885	2528.647377	772.768868	740.181695
1997	12135.24617	2958.515057	737.142586	1800.04287	631.70393	2377.948193	814.501843	766.687991
1998	12144.98844	3062.160584	758.414035	1818.686496	646.109992	2356.324574	811.124289	791.129722
1999	12209.42283	2965.365139	754.585904	1937.489107	646.229094	2339.161982	842.840112	828.509643
2000	12529.06141	3140.03246	780.717263	2011.264671	658.251521	2370.342909	879.677371	854.040325
2001	12554.0699	3297.400959	787.9371	2074.725919	721.152978	2382.535972	933.234364	821.65959
2002	12444.7094	3551.850801	780.655237	2142.81951	745.939495	2395.067923	973.213112	860.41352
2003	12672.41657	4110.913337	784.910229	2226.194853	779.965003	2485.215268	1003.309585	869.966422
2004	12794.36932	4782.741597	833.153745	2379.741351	829.122275	2470.870114	1068.121167	948.170254
2005	12833.00807	5447.8051	856.482367	2472.456103	857.350482	2459.862249	1148.532854	994.202762
2006	12762.09886	6002.678564	873.189551	2593.032746	873.506472	2553.973029	1219.294434	1046.566116
2007	12925.25577	6515.267997	905.655986	2765.790589	909.515166	2580.098407	1282.543737	1095.530514
2008	12591.62109	6709.942463	966.806494	2861.875344	968.384562	2634.339576	1366.502406	1103.457294
2009	11858.17265	7174.6177	944.132391	3000.511294	957.090002	2397.109164	1432.705143	1050.868803
2010	12337.96097	7833.611002	1019.860206	3160.854463	995.372706	2529.30515	1492.690091	1120.219194
2011	12076.50697	8611.636027	1034.614086	3276.969491	999.776396	2665.570944	1536.461337	1136.740694
2012	11893.28394	8859.584709	1095.382028	3470.186119	1058.115386	2599.416563	1600.015408	1093.24134
2013	11960.48122	9236.79119	1122.702092	3560.367253	1104.449294	2540.602331	1660.764428	1101.619248
2014	11717.2744	9173.052347	1160.726423	3801.840439	1150.167811	2459.989421	1725.825229	1138.933113
2015	11648.67749	9146.602262	1137.430863	3872.80916	1141.014857	2387.978559	1747.588963	1193.936703
2016	11591.44428	9101.529118	1098.783165	3986.883509	1157.608667	2373.142286	1766.736448	1240.088065
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Notes: world includes international aviation and international marine bunkers; CO2 emissions from fuel combustion are based on the IEA energy balances and on the 2006 IPCC Guidelines, and exclude emissions from non-energy; non-OECD Asia excludes China.