Sky-High Algae Farms & the Great Carbon Vacuum Cleaner of ’43

By 2043, colossal, self-sustaining algae farms orbiting Earth will be harvesting carbon dioxide directly from the atmosphere, converting it into biofuels and valuable materials. Simultaneously, gigantic, genetically-engineered “carbon vacuum cleaner” drones, powered by fusion energy, will roam the planet, sucking up remaining emissions and depositing them safely into subterranean geological formations – effectively reversing decades of atmospheric damage.