If global warming is not happening, what's going to remove all the CO2 humans add to the atmosphere each year?

There are many good answers but I want to answer because I was asked to. Global warming is indeed happening, but I think that it can't stop this ice age. We are living a warm part of ice age and global temperature should be falling, but it isn't. Colder part of ice age is still going to happened if humans are't able to do something that could keep temperature from lowering. But for the next couple of thousand years, humans are warming Earth (assuming that we don't kill ourselves, because of huge amounts of refugees and smaller land area which can start wars). Things that can store (not remove) CO2 are plants, are plants, especially rain forests which are destroyed in a few years, because most of them don't grow back but instead become deserts. And, I have to mention that if a plant is killed it releases the CO2 that it has stored. Oceans are another thing that can store CO2 and when ice melts there is going to be more oceans. But the thing is that CO2 is not going to stay in oceans forever and it definitely is not the most dangerous. I think that the most dangerous greenhouse gas is methane, because it is about 20 times more effective than CO2 and most of it is under or inside permafrost and it is going to get to atmosphere when there is warm enough. There are many lakes that you can make 10 cm deep hole and light it. It can burn for years. And when developing countries start to consume as much resources as we do, Earth is going to warm a lot faster. There is nothing that can remove CO2. Plants and oceans can store it but it is not permanent. Global warming is not going to stop for the next few thousand years, but after that, Earth can be a longer distance away from sun that it is going to end. And there might be any greenhouse gasses left then. Like someone (I can't remember who) said: "We are doing an experiment that is possible to do only once and we might not be able to see the results".
Earth is going to survive but humans may not.