Originally Posted by sniper69
there is a type of grass that can put out more ethanol production than, for example, corn. There is some being tested at one of the universities in Alabama.
As for Brazil and the sugar cane - there are a percentage of ethanol only cars and many others run on both gas and ethanol. Brazil's dependence on foreign oil was lessened by their discoveries of oil in Brazil. About 2 or so semesters ago,in one of the classes I took, we all had to write research papers ( each paper was done by a team of 5-6 people) and two of the teams wrote about Brazil, ethanol, etc. there is a lot of very interesting information about ethanol.
As for me - I keep hoping that zero point energy will become a reality. http://www.zpenergy.com/
could give some information.
The grass you are thinking of is called switch grass. The problem is that cellulosic ethanol is not yet economically viable for a number of reasons from proper enzymes to how you achieve continuous year round sufficiently large supplies of switchgrass
The vast majority of new cars in Brazil are flex fuel (not ethanol only)