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energy supply

Energy sources are depicted in red/purple, demand is white. Source: [http://www.rice.edu/energy/publications/docs/PEC_Medlock_10_25_04.pdf|Rice University]
Energy sources are depicted in red/purple, demand is white. Source: [http://www.rice.edu/energy/publications/docs/PEC_Medlock_10_25_04.pdf|Rice University]
The world's energy supply comes from renewable and non-renewable sources. As of 2005, about 85% of the world's energy is from non-renewable sources: oil, natural gas, coal and uranium. 15% is from renewable sources, mainly from wood/biomass and hydroelectric dams. Overall, global energy supplies (perhaps excluding oil and natural gas) are abundant but increasingly inconveniently placed for todays biggest energy consumers.

[+] Limits to Non-renewable Energy Supplies

[+] Chart: Global Energy Reserves

[+] Costs of Renewable Energy

gas tax, price of oil, nuclear energy, energy, energy demand, Global warming

Positions

[+] Fossil Fuels will still dominate the 21st Century

[+] Position: (European Renewable3 Energy Council) Humanity can switch to over 50% renewables by 2040.

[+] Position: (World Energy Council)

Sources:

Interview with Fatih BIROL - Head, Economic Analysis Division, International Energy Agency


Survey of Energy Resources 2004
(powerpoint)

Why Carbon Fuels will dominate the 21st century - by Peter R. Odell

"Global Renewable Energy Potential - Dr. Phys. Gregor Czisch

World Energy Outlook 2004 - Executive Summary

Renewable Energy Scneario to 2040 (PDF)