Geothermal energy: The little known resource

In Iceland and a few other countries, geothermal energy delivers a large part of the energy used for heating or cooling, through geothermal heat pumps. You may be surprised to hear that there are hundreds of thousands of buildings in the U.S. that are also hooked up to such systems….

View From the Top: Shell Oil President John Hofmeister

John Hofmeister, Shell Oil president, sees an important role for his company in supplying the world’s energy in the future. Petroleum (oil and gas) will remain, at least for the near to medium future, the most important energy resource. Shell is also investing, as are many other energy companies, in renewable energy (wind, solar, biofuels) as well as so-called clean coal. Hear John Hofmeister’s views on Shell’s future directions and current energy policies.

The search for renewable energy: Who gets hurt? (part 2)

Download MP4Roz Naylor explained to us in a previous podcast how energy decisions made in the U.S. or Europe can have unintended consequences for the rest of the world. Because of the importance of this topic, we visited one of her PhD students, Joanne Gaskell, to learn more about the…

The search for renewable energy sources: Who gets hurt? (part 1)

Download MP4World corn prices have risen considerably in recent years because of corn ethanol production. If you are poor and rely on cheap corn as your staple food, such price increases are bad news. This is just one example of how energy decisions made in the U.S. or Europe can…

Alternative Energy Options

Mark Jacobson is a world expert in wind energy and air pollution. He sees wind and solar power — not biomass — as the most optimal energy sources. He says that the increased use of ethanol will not improve the quality of the air we breathe. Mark also strongly believes…

Choosing Renewables: Wind and Solar

Download MP4Alternatives can help create a sustainable energy future. The most promising long-term alternative energy sources are wind and solar: there is plenty of it, greenhouse gas emissions are low, and the required surface area is relatively small — especially when compared to biomass. In this talk, SmartEnergy’s Margot Gerritsen…

Changing the world’s energy systems

download mp4Global warming is happening, and one of the culprits is likely increased emission levels of carbon dioxide and other greenhouse gases as a result of our energy usage. Lynn Orr is director of the Global Climate and Energy Project and one of the world’s leading experts on global warming…

A closer look at wind energy

April 6th, 2007 in Controlling carbon emissions, The world’s energy systems, What should we do? and Renewable energy resource: wind. 0 CommentsWind energy is a very attractive [tag]energy[/tag] source with very low emissions and low space requirements (especially when compared to biomass crops). My colleague, [tag]Mark Jacobson[/tag], has done extensive research…