What are the main Greenhouse gases and how are they contributing to climate change?

It is essential that we consider nitrous oxide when discussing greenhouse gases; it's one of the biggest factors that contributes to global warming. Nitrous oxide is "emitted during agricultural and industrial activities, as well as during combustion of fossil fuels and solid waste." These are all human-found activities that have, as a result, caused damage to the environment at the hands of humans. Not only are the activities that release nitrous oxide contributing to the damaged Ozone, they're also polluting the environment which is, in turn, damaging areas of land and, in some cases, even poisoning species (birds, flies, insects; they're all essential). Take fertiliser, for instance; farmers and even gardeners use excessive amounts of chemical fertiliser which can not only kill animals but also cause unfound damage when consumed by humans. As a species, we should be looking to consume more organic produce and ridding the environment of chemical fertilisers which, if not changed as the world's population continues to grow, will undoubtedly cause more irreversible damage and continue to contribute to climate change.