arguing about biodiesel
I'm guessing you've got to write an argument either for or against the use of biodiesel?
The main arguments for are of course to do with the environmental benefits of not using diesel which is very polluting and contributes to global warming.
The main arguments against are down to the fact that using land and crops for biodiesel means that there is less land/ crops available for producing food. This pushes food prices up and can adversely affect the poorest people.
In addition the crops required for biofuels tend to require a great amount of water which is currently a scarce resource in many countries and the widespread deforestation which has accompanied the growing of biofuel crops may in fact be leading to greater global warming than the use of normal disel