Acting on CO2 and finding renewable sources of fuel are differentOne targets lowering CO2, and the other looks for a different type of fuel that can work instead of gas and oil
Both are interconnected, indeed, liking using hydrogen in cars as an alternative to petrol or diesel. But finding an alternative to petrol, which should last longer, doesn't necessarily require a low CO2 emissions rating, it just helps a country look more caring
But I do agree with you, there seems to be little work going on finding a new type of energy that the world can use that is cheaper and better than oil, gas and petrol. At the end of the day, it probably comes down to money. Petrol costs alot (usually down to high taxes) so it's a financial goldmine while water or just plain hydrogen (which comes out as pure H2O in Hydrogen Powered Cars) isn't, as it's not hard to find
Not forgetting car manufacturers will have to look into perfecting the hydrogen engine, when they're spending, or have spent, billions attempting to perfect the petrol and diesel engines. Not forgetting Hybrid Engines. Making the swap would cost alot, and it would require people buying newer cars, so it would have to be a slow transition, which would anger alot of people - why do they HAVE to buy a new car, when they're already wasted money on one (whether it was bought a 100 years ago, or a few minutes ago, it would still be pretty annoying). The government and car companies cannot give money off converting the cars, it would cost both alot of money and some cars might need more than the engine system to change - electrical systems might need changing too :.







One targets lowering CO2, and the other looks for a different type of fuel that can work instead of gas and oil 
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