Why is wood seen as a climate-neutral fuel, but coal and oil are not? All these fuels are based on composed organism that collected carbons over their lifetimes, that are now used as a fuel. The only difference is the cycle time.
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You cut down a tree, burn it and replant another tree in its place. In ten years or so the carbon from the burning of the first tree is absorbed from the atmosphere by the second tree, so it all becomes carbon-neutral. Coal and oil, on the other hand, have been accumulating underground for millions of years. We have no practical way to pump carbon out of the atmosphere, convert it to coal or oil and put it underground.
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