Comments on: Are bio-fuels really the answer to ...

By: david m

david m — Sun, 27 Jul 2008 19:55:18 +0000

Sugar cane prices have doubles in 18 months! Afforestation is increasing to grow it for fuel!

Corn and bread prices are rising as that is used for fuel. The corn used to produce one tank of bio fuel would feed a person for a year. The greenhouse gas nitrous oxide is produced by the nitrogen fertiliser used in growing corn. If the US diverted its entire current corn harvest to bio fuels it would meet only 11 per cent of its current gasoline demand and just 10 per cent of the world’s transport fuels would require 9 per cent of the planet’s agricultural land

At present it is likely to lead to disaster.

BUT – there are a number of ways bio fuel could be made such as using cellulose which would use fast growing weed crops and compost-able materiel. Experiments are going on with using Algi and many other things. The answer is out there but it will take a little time yet.

In the mean time the best use of bio fuel is adding it to the petrol and diesel we already use rather than as a stand alone product.

By: JOHNNIE B

JOHNNIE B — Sat, 26 Jul 2008 05:28:23 +0000

The bio. diesel doesn’t produce less CO2 and ethanol will do about the same. There is a problem that is not a problem. CO2 is not a pollutant,and here is why. Mother nature has been recycling our air for several million years and continues today. The CO2 is recycled through plants in a process called photosynthesis. The plants Use the CO2 to produce their food and give us back oxygen.

By: campbelp2002

campbelp2002 — Sat, 26 Jul 2008 00:20:37 +0000

No hay respuesta a la contaminaci

By: Bob G

Bob G — Wed, 23 Jul 2008 14:11:49 +0000

Los biocarburantes no será más fácil en el medio ambiente. Hasta nos hemos pasado de combustión va a tener el sam problema una y otra vez. Fussion y reacciones de fisión son la única solución real, porque el mundo no va a reducir a su uso de la energía no importa cuánto nadie habla de ella. El uso seguirá aumentando.

By: SAYS ME

SAYS ME — Sun, 20 Jul 2008 22:46:31 +0000

no they are not ( just a supplement )

they do not and will not come from trees but renewable fuel CROPS ( currently corn )

we would not cut down trees to make room for crops – at the moment we don’t even cut down trees to make room for FOOD crops ( we would use land that is currently unused – but even if we plant every available acre there would not be enough )

bio-fuel would actually be GOOD for the environment because we would keep more land in use during the growing season ( more production of oxygen – less solar heat gain – more mulch like material for other use – less loss of topsoil to wind and water )

CUTTING TREES – we have already established a balance in the US between trees and crops – the land we have in trees is optimum for lumber-wildlife-recreation and is unlikely to change

even though i mentioned that we could not supply our energy demands with the available land that is not really a factor since the economic ( profit ) processing ( refineries ) and transportation ( alcohol “bio fuel” has to be trucked it doesn’t take well to pipelines ) are the real limitations