How does an increased level of carbon dioxide affect a plants growth rate?
For plants, their “food” is a combination of carbon dioxide and sunlight. If there is more carbon dioxide available for a plant, and everything else stays the same, the plant will be able to grow faster. But it is possible that by growing faster, the plant will cause more shading, which would make it get less sunlight, so the final outcome would depend on what kind of plants, what else is growing around it, and how much sunlight it gets in the first place. Also, there also needs to be enough water to let this happen. If there is not enough water, then it does not matter how much sunlight or carbon dioxide there is, because the plant will not be able to do anything with it.
