This is already a solvable problem. The first thing to understand is there is a carbon cycle just like the water cycle. If it comes out of the ground then it n

This is already a solvable problem. The first thing to understand is there is a carbon cycle just like the water cycle. If it comes out of the ground then it needs to go back in the ground. This happens naturally on large geologic time scales, except humans are pulling it out faster than normal. To balance this all out we have to put it back in faster than normal. The solution needs to be cheap and easy otherwise it will never get done. Carbon capture is expensive and hard so it won't work for political and socioeconomic reasons. The best solution appears to be growing biomass and the ocean is the perfect environment for it because of its size and the fact there is already a mechanism in place. Sea water is high in calcium and nitrogen but lacks iron in comparision. Algea need these as a basis to grow and reproduce. Micro organisms feed off algea, plankton feed off micro organisms, small fish feed...etc. By releasing iron oxide into the ocean it causes an algea bloom, an immediate proliferation of biomass. Once the iron is consumed the ecosystem normalizes, returning to levels prior to the application of iron oxide. By requiring a distribution system on container ships, and determining seasonal application amounts and times, we could seed our way to large biomass. The key is that unconsumed biomass sinks to the bottom of the ocean effectively capturing carbon, moving it along in the cycle to the point where the next step is oil conversion. Once the CO2 levels in the water are at a negative differential with the atmosphere, the ocean will pull the carbon back in as a simple matter of equilibrium. Over time this decreases global CO2 not only cooling the air but also the ocean. This mechanism is both easy and cheap and requires minimal regulation and minimal ongoing funding to monitor and manage. So, if this solution exists, and seems to be the best solution to overall warming of the earth, then ask yourself...why aren't we doing it?