Question

of all the green house gases, which is considered to be the worst in terms of its impact on climate change. coal butane methane carbon dioxide

Explanation:

Methane is a potent greenhouse gas. It has a much higher global warming potential than carbon dioxide over a 20 - year period. Coal is a fossil fuel (not a gas). Butane is a hydrocarbon fuel (not a major greenhouse gas in the context of climate change compared to methane and carbon dioxide). Carbon dioxide is a major greenhouse gas, but methane has a more significant impact in terms of its ability to trap heat in the short - term.

Answer:

Methane