Burning fossil fuels released carbon dioxide into the atmosphere, polluting and warming the planet. One solution is to quit burning fossil fuels and rely on renewable energies like solar and wind. Unfortunately, liquid fuels are the most efficient for long-distance transportation because the long-distance infrastructure for electricity costs too much. A subsequent solution is to use renewable energy to pull the carbon back out of the atmosphere and convert it back into fuel. Rather than just reducing emissions and waiting for nature to clean the atmosphere, we could take a much more active role, potentially cleaning up the mess we made.
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