## 4 Discussion
### Mitigation Strategies
#### 4.2.6 Usefulness of some Components of GHG Emissions Nitros Oxide (N\({}_{2}\)O)  
Nitrous oxide N\({}_{2}\)O is useful in the medical field [56]. For more than 100 years, Nitros oxide has been used therapeutically as an anesthetic and analgesic substance [57]. Previous work on \"a survey of the American academy of pediatric dentistry membership\" indicated that a large percentage of practitioners reported that when other sedatives were combined with N\({}_{2}\)O, they experienced compromised airways as a result of the patient being deeply sedated compared to when N\({}_{2}\)O was used alone. This shows the usefulness of N\({}_{2}\)O when used alone in sedation. However, a minority of the respondents reported that the office personnel complained or inquired about the ambient effects of N\({}_{2}\)O. The most frequent concerns of the workers were related to the effects on reproduction, pregnancy, and miscarriage [56]. Nitros oxide has also been used as a recreational drug. However, chronic abuse has caused harmful neurological effects and even death [57]. Although N\({}_{2}\)O has found use in the medical field, the report shows that there is a need for more research on the most appropriate use for N\({}_{2}\)O. Technologies to ensure the clean separation of GHG gases into useful components will go a long way in alleviating and turning the fears about GHG emissions into positive things such as plans on how to store and put these materials to good use. Carbon Dioxide, (CO\({}_{2}\))  
Approximately 230 Mt of CO\({}_{2}\) is used globally every year. The fertilizer industry uses approximately 130 Mt CO\({}_{2}\) in the manufacture of Urea, and approximately 70 to 80 Mt CO\({}_{2}\) is used in enhanced oil recovery. CO\({}_{2}\) is also used in fire suppression, the stimulation of plant growth in greenhouses, metal fabrication, food, and beverages. The transformation of CO\({}_{2}\) into fuels, chemicals, and building materials is the new pathway for using CO\({}_{2}\)[58]. Some scholars [59] reported that the use of CO\({}_{2}\) angiography in both diagnostic and interventional vascular radiology has been greatly expanded by recent advances in delivery systems, post-processing capabilities, and its extension to new vascular interventional procedures. In most parts of the arterial and venous circulations, CO\({}_{2}\) has been proven to be a safe and effective intravascular contrast agent. The study states that questions about neurotoxicity restrict the use of CO\({}_{2}\) arteriography to the abdomen, pelvis, and extremities. This also shows that although CO\({}_{2}\) has also found some good uses in the medical field, further research is needed to discover more ways to put CO\({}_{2}\) into good use. CO\({}_{2}\) has also found good use in concrete in terms of increased strength and improved set time [60; 61]. Figure 6: Before and after suggested improvements. Methane, (CH\({}_{4}\))  
Methane is used primarily as a fuel for light and heat. It is also used in the manufacturing of organic chemicals [62]. A previous report [63] noted that, despite its multiple benefits, methane recovery is not widespread for several reasons. Some of these are, \"historically, mining companies have not seen methane on its own as an energy resource\". It is a secondary by-product of the industrial process where it is emitted. Those that are responsible for methane emissions may not be familiar with the technologies for methane recovery, especially in developing countries. Poorly functioning energy markets and financially insolvent utilities and municipalities in many countries fail to provide the right atmosphere that will attract private sector investment in methane capture and utilization. Even in developed countries, gas flaring is yet to be stopped. Rather than leave this good resource to be of concern for many people, this study recommends that opportunities to capture, store, and distribute this good resource for more positive uses be explored.