We live in an oil driven economy.

Oil is getting more expensive.

You can make fuel from wheat.

Wheat is getting more expensive.

You can also make fuel from soy bean.

Soy beans are getting more expensive.

Try making fuel from corn.

Corn is getting more expensive.

We could do fuel from sugar (cane).

Sugar is getting more expensive.

I wonder what we will be eating in 5-10 years time.

• green stuff
• sustainability