Global warming?

[footfootfoot]

The temperature of the earth has increased by a degree. That is huge. Consider the difference in the growth of yeast, for example, at 10°C it is dormant, at 11°C it begins to grow.

Consider all the other bacteria, viruses, and insect life that are held in check by minute temperature differences, or conversely are able to survive.

It's not about finding a perpetual motion machine or an alternative source of energy, it's really about finding an alternative to using or requiring so much energy. Increasing gas mileage is just re-arranging deck chairs on the Titanic.

eta: I thought I'd add this lovely graph