Arable land: some of the best known usage of land is in Israel where farmers in the desert have some of the highest yields in the world. so please dont tell me to have very yields from even un-arable land isnt possible. when there is a will there is always a way. Not all bio fuels need land by the way.
Water: We all need water the Indian subcontinent will face massive shortages of it once climate change really kicks in, so its in our best interest to invest in desalination plants across our coastline, rain water harvesting, reforestation for timely rains etc and other methods of having lots of water.
Bio fuels can be made from Algae, used veggie oil and other things and dont need large amounts of land or water. I dont really know what kind of inputs are required to make jet fuel but here are some in the link below.http://www.diversified-energy.com/index ... ion=centia
If the idea of using bio fuels wasnt attractive enough, BEST wouldnt be working towards having a bio diesel bus fleet to cut down on it carbon foot print. Bio diesel is being used as we speak in AP, karnataka and Guju transport companies. Ethonal which is also a famous bio fuel is widely used in Brazil.
I also said bio fuel doesnt have to greener, it just has to be locally made. Thats the core of my point.
By the way regardless of what you say about their usage, the Indian Govt. is surely interested enough to actually begin R&D on it.http://www.thehindubusinessline.com/201 ... 090500.htm
Next time take a train ride between any two major cities within our country and see how may un-used arable land is out there.
Jathropa is grown in poor soil and i am sure we have enough poor soil for adequate production.
Virgin atlantic flew a 747 in 2008 with bio fuel blend of coconut oil and some other oil. Hey isn't our entire coastline full of coconut trees?
Not saying its THE solution but its part of it. especially for our military which uses lots of vehicles.