Show Pages - Principal Voices - Economics of Energy

Traditional non-renewable fossil fuels are still relatively cheap to produce but environmentally expensive. Renewable energy is, by contrast, still expensive to generate but environmentally sound. So how will the world economy be powered by the end of the 21st century?

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Doha: Debate highlights Doha, Qatar: The city hosted the first of the Principal Voices round table debates on the 21st May. A 'green' home for oil & gas? Quotes of the day: Adelegan Quotes of the day: Grimsson Rising oil prices: Fueling Change iReport.com: Pain at the pump	What you had to say This year in Doha we moved the focus from the stage to the floor to give audience members another chance to comment. What did they say? Your emails
Consensus on biofuels 'in reach' says U.S. delegate The merits of increasing biofuel production in the middle of a crisis over skyrocketing food prices is hotly debated at the United Nations food summit.	Biofuels debated at food summit Leaders at UN food summit lay out their disagreements on the key issue of biofuels and soaring food prices.
Opinion: Biofuels It wasn't so long ago that biofuels were being heralded as the savior of the planet. But fair winds have been replaced by persistent storms of criticism. But is it justified?	More stories Staring down the barrel Iceland fuel protests Energy, the smarter way A necessary evil? Calculating the cost Hedging their bets Valuing the rainforests Underwater windpower RSS feed: Economics of Energy

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Principal Voices on CNNI

CNN International anchor Charles Hodson presented the first Principal Voices program, "Principal Voices: Economics of Energy," which aired in late June. Watch it here.

Part 1: Cheap abundant energy
Part 2: Iceland's renewable energy
Part 3: Cows to Kilowatts

Jeremy Rifkin

The internationally renowned economist, social critic and author lends his expertise on the environment and energy to world leaders.

Olafur Grimsson

The President of Iceland is a passionate advocate of renewable energy. Read what he had to say at the first Principal Voices debate in Doha.

Joseph Akinkugbe Adelegan

Joseph Adelegan is best known for the "Cows to Kilowatts" project, which creates energy from waste. Click here for his views.

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