Burning any type of fuel, Bunker oil, diesel, gas or natural gas; when they burn they produce CO2. You can't get away from producing CO2 when you burn things with carbon..
In places in Canada they still use oil to heat homes. Although the trend is to go to natural gas or propane in rural areas, cities depend on electric heat.
Propane vehicles aren't as good as gas engines or diesel engines. We had those engine for over 100 years so they work better, but they produce more pollution than propane.
Everybody today is pushing electric this, electric that. The real solution would be hydrogen economy. Hydrogen works in fuel cells to produce electricity. When hydrogen burns its producing water. Hydrogen can be produced by the electroylsis of water breaking the hydrogen-oxygen bond and producing hydrogen gas and oxygen. The problem is infrastructure to build it, and the fact hydrogen can be explosive.
For electric the problem is battery storage, the best type of battery today is a phosphate lithium battery. Lithium is extracted by using water and other chemical processes. And there are waste processes left behind. So the answear to storing electricity could be solid state batteries.
The future is hydrogen vs. Electric.
The problem here in Canada is there are too many voices saying "do this", and "do that". We need to look at Norway (how they invested their funds from oil ), and other small countries that used what they had to build hydro-electric dam with wind power to pump water back up to reservoirs when the wind was blowing. Or how they built a transportation system between islands.
No our politicians are way more interested in how they get reelected than on the future of Canada. Today if I was a politician I would concentrate on ways to get the average person under my thumbnail. I'd increase welfare, and kick backs to the rich. As the poor increase in number I have a population base that will always want to vote for government handouts. Kind of sounds like where we are today...
People in Canada have to start looking at Canada as theirs. The mineral wealth and oil wealth should be theirs, but only a few have a say on what happens to that wealth...Unfortuneately the wealth of Canada belongs to the "Crown". the Crown is the Royal Family/Federal Government.
People need to read the "Magna Carta" and make a new one for Canada today. No taxes unless the people say ok to them... today taxes are mandatory for everyone...
Did you know Federal income tax only became legal in 1972. After the Fed government passed a bill in 1972, cause some farmer didn't pay because income tax in WW2 was a temporary thing to pay for the War. the money was so good the government just kept collecting the money from the Canadian people....
And as we all know most tax laws only favour the rich..... tax law should be simple, that even retards in government can understand them...