PetroleumAlternatives

The cosmic oil-consumption scales have been tipping back and forth a lot this week. On Tuesday, Nissan revealed that its all-electric Leaf will be priced lower than most of us expected. On Wednesday, President Obama announced that we'll be ramping up our off-shore drilling efforts on the East ...

For the past century and a half, the developed world has relied on petroleum and its by-products for a large proportion of our energy needs. The reason oil has been so dominant is easy to figure: it's remarkably energy dense and at the same time it's far cheaper than any alternative. Recently Ed ...