Should we abandon biofuels?

[jean63]

Goodbye ............ BIOFUEL or rather agrofuels !!!

Should we abandon biofuels?

Even if such a question - somewhat disturbing - cannot be answered unequivocally, it nevertheless deserves to be asked, which we have not failed to emphasize in recent months. debate is progressing quickly and no doubt it should be seen as a direct consequence of the recent explosion in cereal and oilseed prices. But what is quite fascinating is that the questioning of biofuels is now relayed from within the European institutions.
Let us recall that the Brussels Commission has set ambitious objectives in this area: it should, moreover, and this is not without incident, confirm this week the objective of 10% of the share of biofuels in total consumption of terrestrial vehicles by 2020. Such a goal is also closely linked to the proactive policy of reducing greenhouse gas emissions, which "should" fall by 20% by 2020.
The fact remains that, according to an internal report by the Brussels Commission, "the disadvantages of biofuels will almost certainly outweigh their advantages" ...
The study concludes that it cannot be said that the aforementioned 10% target will make it possible to reduce greenhouse gas emissions, even though biofuels pose many problems. :
Cannibalization of food production
Deforestation, especially in Southeast Asia
High cost for public spending (up to 65 billion euros by 2020 for the Europe of 27 by 2020).
These arguments have been known for a long time, but probably they find more resonance today at a time when hunger riots - the old way ... - are starting to break out on both sides of the planet.
Eat or drive ... In Indonesia or elsewhere, the choice is quickly made!

source: http://www.boursorama.com/conseils/deta ... ws=5052504

to also read the reactions in the forum following the article.

[jonule]

strongly next generation fuels, BTL! (biomass or gas to liquid)!
so it's going faster than expected, good!

[Former Oceano]

Rather than 10% agrofuel why not 10% less consumption?

[jean63]

Rather than 10% agrofuel why not 10% less consumption?

Good idea, but millions of new car owners in the coming years with all the emerging countries. ... so 10% less will not do it, especially if we are not in a hurry to change the propulsion mode (compressed air, electric, hydrogen ....).

[Christophe]

Goodbye ............ BIOFUEL or rather agrofuels !!!

I'm flattered that you follow my proposal for distinction

[Giul]

'Lut

Ethanol production from corn threatens the Gulf of Mexico:

Growing ethanol production from corn in the United States threatens the Gulf of Mexico ecosystem, creating a growing "dead zone" there, warns a Canada-US study released today.

The projected increase in US ethanol production would be "a disaster for the Gulf of Mexico," predicts Simon Donner of the University of British Columbia, co-author with Chris Kucharik of the University of Wisconsin of this study published in the site of the Annals of the American National Academy of Sciences (PNAS).

http://www.ledevoir.com/2008/03/10/179723.html

@+

[boblebricoleur]

Personally, in the current state, and given the population without food, let's take a break and focus on the rest.
I had heard (I don't know where dsl anymore) that they were working on a bacterium that breaks down wood, corn waste, .... and not food to produce ethanol and diester.
Here is a real solution, to recycle "waste" because for the moment it is more like "choosing" between eating and driving.

[Christophe]

Personally, in the current state, and given the population without food, let's take a break and focus on the rest.
I had heard (I don't know where dsl anymore) that they were working on a bacterium that breaks down wood, corn waste, .... and not food to produce ethanol and diester.
Here is a real solution, to recycle "waste" because for the moment it is more like "choosing" between eating and driving.

You heard right, it's called woody ethanol and it is part of the 2nd generation BIOfuel not to be confused with AGROfuel which are the 1st generation biofuel and which starves the world (because Bush wants it) ...

Details: https://www.econologie.com/agrocarburant ... -3757.html

[highfly-addict]

Here is a real solution, to recycle "waste" because for the moment it is more like "choosing" between eating and driving.

A real solution! As you go! Currently, organic "waste" from agricultural production is not (yet?) Recoverable for energy production, but it is important not to believe that it is useless!

Indeed, buried by plowing or left in place as mulch, they are ESSENTIAL for maintaining the clay-humus complex of soils.

However without this complex, it takes a lot of mechanization and fertilizers to obtain correct yields, not to mention the phenomena of erosion and loss of biodiversity ...

Little reminder of elementary biology: we humans are part, whether we like it or not, of ecosystems!

So the "solutions" which consist in changing your position to better continue to saw the branch on which you are sitting .... no thank you without ceremony!

[Louhac]

Does anaerobic digestion of organic waste necessarily mean taking away its fertilizing potential ???
If this is not the case, we can very well anaerobic digestion first and then use the fertilization residue…
Even if this is the case, there is also a localization problem: in Brittany, the concentration of farms means that the region is left with more nitrogen (in the form of slurry) to spread than what the crops need. , part can therefore be methanised.