Entrepreneurs have the flexibility and the ability to do things that large companies simply cannot. Could a large company pull off a trick like Amyris, going from anti-malaria medicine to next-generation fuel?

Is it 10 years, 20, 50 before we reach that tipping point where climate change becomes irreversible? Nobody can know. There's clearly a probability distribution. We need to ensure this planet, and we need to do it quickly.

Will biofuel usage require land? Absolutely, but we think the ability to use winter cover crops, degraded land, as well as using sources such as organic waste, sewage, and forest waste means that actual land usage will be limited. Just these sources can replace most of our imported oil by 2030 without touching new land.

The only way you multiply resources is with technology. To really affect poverty, energy, health, education, or anything else - there is no other way.

Certain food-based biofuels like biodiesel have always been a bad idea. Others like corn ethanol have served a useful purpose and essentially are obsoleting themselves.

Electric cars are coal-powered cars. Their carbon emissions can be worse than gasoline-powered cars.

If everyone played it safe, we wouldn't get anywhere.