A proposal has recently been put forward to build floating islands made of solar panels which would produce fuel by extracting CO2 from seawater. Welcome to the future!
"Huge solar farms floating in the ocean could be used to convert carbon dioxide in seawater into methanol, a fuel that can power airplanes, trucks and other long-haul vehicles. That’s the takeaway from provocative new research suggesting that such “solar methanol islands” could curb our reliance on fossil fuels that belch harmful greenhouse gases into the atmosphere."NBC News
Check out this digital rendering of what the floating solar island could look like (source: Unknown)
Sources: NBC News