How environmental friendly are modern car as surly with new technology cars should be cleaner?

over resent years car manufacteres have been improving the performace of cars and the way it uses pertrol so what is being used in them should be less toxic in this case or will cars in the future be totally using biofuel if so how will this effect the enviroment in the future or is really there are far to many cars on the roads already and thats the real problem or is it an excuss to put the prise of petrol upHow environmental friendly are modern car as surly with new technology cars should be cleaner?Cars are indeed much more eco-friendlier than it used to be. If you ever watch old movies people used to commit suicides by running their cars with the garage doors closed. If you tried that NOW you just get a head ache (if that much).



But Bio-Fuel isn't cleaner, it is just re-newable energy source - so the theory is it is better. That is yet to be proven. Either way it does NOT solve CO2 problem (see blow). It only solves the problems of OIL coming from the troubled Middle East region.



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The new problem is that whenever you burn any kind of fuel, it produce CO2 and that is green house gas (meaning it warms up the planet). So while it is cleaner (free from sulfur and nitrogen compounds), it still harms the earth - by warming it. So you take that and multiply it by millions of cars and you get global warming.



So any real eco-friendly energy has to eliminate CO2 also. For that we have to eliminate any kind of combustion (fire).



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As for the prices, oil companies will take any kind of EXCUSE to hike up the price. They don't need just this crisis.



Good Question - Good Luck.How environmental friendly are modern car as surly with new technology cars should be cleaner?Mordern cars get more and more environmentally friendly as they have to conform to ever increasing emissions laws. e.g. In Europe all new cars must be Euro IV compliant and Euro V will come into affect at some point which will be even more strict.



Biofuel can be argued to not be an alternative as the volume of plants cut down to produce it has an adverse effect on the environment and actually contributes to increased CO2 in itself.



Petrol prices going up are largely due to supply and demand. Various things have has a short term impact on prices recently which has driven the barrel of a price of oil up significantly. OPEC can control this to some extent though.



Governments don't help with the increased prices as they see fuel duty as an easy target, but at the same time do little to stop people using their cars in ways of better public transport.How environmental friendly are modern car as surly with new technology cars should be cleaner?Bio fuel is not the overall answer. while it allows a car to reduce its output of harmful emissions the cost in providing that fuel is bad for the planet too.

There are better alternatives but all have drawbacks or are not cost effective.

alcohol as used in Argentina etc will give toxic free emissions and allow less wear on an engine but we cannot supply as per Bio fuel enough for everybody.

The way forward at the moment is still being developed with things such as the hydrogen fuel cell but is not yet thought to be commercially viable etc.

an in between offering is best at the moment such as the 'Prious' car which uses both an engine and electric motors and a battery to assist and work between them to reduce overall emissions. again it has a slight higher fuel usage than its petrol equivalent so it's till an open game as what is best. time will tell.