I agree regarding corn (and all grain) based ethanol. It just doesn't seem like the meager gain can overcome the massive externalities.

As discussed on Robert's earlier thread, I do think sugar cane-based ethanol can be EROEI positive and can provide benefits to certain countries over a finite period of time in the future. It is also a huge win in terms of global warming. Sugar cane derived ethanol seems to produce over 80% less emissions per mile than gasoline.

Personally, I think we are at or near a plateau in oil production. While I'm not convinced production levels will drop off sharply, I don't think they will go up much from here ever.

So, I think we need to develop solutions. I am not driven by an unrepenting obsession with the evils of vehicular transportation so I don't see any option for prolonging it as a scream inducing evil.

I fully expect that in 10 or 20 years, we will have a lot less oil available, but will have largely transitioned to an electricity-based transportation system.

It is the interim that worries me. I do think that conservation could be our savior, but don't see any effective means of making it happen other than price. So, I would like to see this done in part throught axes, but am fairly pessimistic that governments will intervene effectively.

Despite all the calls for a Manhattan project, governmnets are craven and inefficient. The thing we have now that is closet to a Manhattan project is the US corn ethanol program , which is a travesty. There is no reason to think the next attempt will be better unless you earn you living at a government funded research lab.

This is all a long winded way of saying that the number of good solutions on the table that can work today is very small. I think we need to take what we can get. Ten years or so of producing ethanol at levels up to or even in excess of double current sugar cultivation is hardly an enormous threat to the environment. In fact, given climate gains, it could be a net plus.

Biodiesel, CTL, tar sands, beef consumption, junk food, the amount of sugar in our diets, etc. all seem far worse for the environment.

I am amazed by how agitated people get over ethanol from sugar cane. I think is is primarily because it does work and to them threatens to prolong the car culture.

But for a country like Thailand, where I live, it makes sense and will happen. The only arguments that I can see against Thailand producing 10% or more of spark engine fuel from sugar are oil prices will come down, pollution and global warming don't matter and spending 10% of your GDP on imported petroleum is just fine.

None of these are true, so Thailand will produce a fuel that is cheaper than gasoline, is produced domestically with almost all domestic content, is a net plus for the environment/climate and offset a masssive transfer of Thai wealth to foreigners.

When electric transport becomes viable, ethanol production will stop. But Thais will be glad they did it.

I think the Thais are one of the worst offenders for subsidising diesel fuel and kerosene to way below market prices?

rant mode on
I suspect but haven't researched it that sugar cane is a pesticide nightmare?  My own take on all agriculture is that if it needs massive amounts of pesticide (and herbicide, and fertilizer) its not a long term solution.

Sugar is this ridiculously controlled market.  Agriculture is overprotected and oversubsidised world wide (yet we let people starve), and sugar is amongst the most controlled commodites (or the most controlled).

A sample, sugar costs 4 times as much for a food processor in the US than in Canada.  Thank you ADM company and High Fructose Corn Syrup!

Of course then there is Cuba.  If the US wanted cheap ethanol, it should go to Cuba.  GWB's election in 2000 and a Cuban kid named ?Rafeal Elian? got in the way.

rant mode off

I'm not sure about CO2 ethanol v. gasoline.  I'm not sure how one hydrocarbon can have 80% less CO2 emitted than another.  Seems to me the CO2 emission ought to be pretty proportional to the amount of energy released?  Again my chemistry is too rusty for this.

Ethanol is a Brasilian solution to a Brasilian problem.  I'm not sure it generalises.

Corn ethanol is a US political solution to a US problem.  We should seek to minimise damage: there is a level of ethanol which all gasoline could take (5%?) without big switching costs, and the US could simply mandate that across the whole country (thus consuming all the readily available corn ethanol).  

I'm not sure about CO2 ethanol v. gasoline.  I'm not sure how one hydrocarbon can have 80% less CO2 emitted than another.  Seems to me the CO2 emission ought to be pretty proportional to the amount of energy released?

It is true that both would release the same amount of CO2, but the net is lower for sugarcane ethanol because the process heat is provided by bagasse, which took up CO2 while it was growing. In the case of gasoline, the process heat is provided by fossil fuels.

I think it is fair to say that a significant proportion of  CO2 and other greenhouse gas emissions from burning ethanol were originally captured when the sugar cane was grown.

However, it is important to realize that diesel to run equipment to grow, transport, and process the sugar cane and additives like chemical fertilizers, pesticides, etc. require fossil fuels and contribute to green house gas emissions. These factors make corn based ethanol far less preferable than sugar cane based ethanol.

Further, the possibility using renewable sources of energy for stationary production facilities, capturing the CO2 and other green house gases, and re-injecting them deep underground could potentially provide a reduction of green house gases to the atmosphere.

Thais have, historically, been one of the worst offenders in subsidizing oil consumption. However, they have rolled back much of that expensive program, which helped make the country one of, if not the, most energy intensive in the world. However, previous Thai foolishness has no bearing on efforts to do better in the future. Thailand has done a great deal with energy efficiency and grid incentive programs to support renewables.

Sugar is one of the most highly subsizdized crops, as you note. But Brazil, Cuba and Australia (if I recall correctly) are market-based and Thailand may lift domestic price caps this year, which they should.

I'm not sure it generalises.

I said it is a niche solution. It does not universalize. I don't think Bulgaria should try to grow sugar cane. But it can reach beyond Brazil to most tropical countries.

Sugarcane EROEI is positive Jack - is positive.
That's especially useful in New England ;-)
No. But it is in LA, FL, TX, GA, HI, CA.
Actually there already is a sizable sugar industry here in Florida. Unfortunately the bulk of the farms are on the edge of the everglades and the petrochemical run off is causing dramatic changes in the ecosystem. The state and feds have been working to limit the runoff, but there's a lot of money involved and progress is slow. So, if we are to go this route (sugar ethanol) I sure hope that we can figure out a way to do it organically.
Brazil seems to be doing significant organic sugar cane to ethanol.
That's great. Sure hope we follow suit. Though the history of the Florida sugar industry does not really provide much support for that hope.

I was also thinking about Hawai'i, as I used to live there. It used to be a big sugar exporter, but there is no sugar grown there commercialy any longer. They were priced out largely due to labor costs, but now their is also the issue of land costs. I'm wondering what sort of price sugar would have to fetch in order for it to be economic in Hawai'i again.

I guess I just keep coming back to the can versus will issue. Lot's of these alternatives can/could happen. Whether they will or not is another issue.

Fantastic piece in Harpers a few years back about this.

2 brothers own most of this resource.  One was on President Bush's 2000 election committee, one was a heavy contributor to Al Gore ;-).  Cuban American family.  Billionaires.

I am vague on the details as this article was about 7 years ago-- jump in someone and correct me.

The US government had a scheme to buy them out.  I think the sticking point is whether the land then goes back to being Everglades, (and helps preserve the Everglades by not sucking up the water upstream of the Everglades) or (as the State of Florida wants) the land is allocated to developers (which would be even worse for the Everglades than the current position).

So the US is stuck growing sugar cane, at great ecological harm to a significant and unique bioresource (and tourist area), for very low economic value created (this is sugar after all, a pure commodity) because:

  • for domestic political reasons the US cannot import Cuban sugar (see Joan Didion's Miami re exile politics and any number of books and articles about the way the embargo actually strengthens Fidel Castro's regime) which would be the cheapest solution

  • the US can't get its act together in the face of land development pressure in Florida

The thriller writer Carl Hiassen always said Florida is his most creative source of ideas: you couldn't make some of the stories he writes up.
Neither are coconuts or bikinis in December, but they both seem to work pretty well in Thailand.