The Earth’s natural greenhouse effect keeps our planet warm enough for life, but human activity has intensified this effect by adding additional gases to the atmosphere. According to National Geographic, water vapour, carbon dioxide (CO₂), methane, nitrous oxide and chlorofluorocarbons are key greenhouse gases. CO₂ comes primarily from burning fossil fuels, deforestation and cement production; methane comes from sources like wetlands, livestock and rice paddies; nitrous oxide is released from fertilizers and industrial processes; and chlorofluorocarbons and related industrial gases are entirely human‑made. Some of the most potent warming gases are the synthetic “fluorinated gases” used as coolants, propellants and solvents.
These compounds, such as hydrofluorocarbons, perfluorocarbons, sulfur hexafluoride and nitrogen trifluoride, are not naturally occurring and have global warming potentials thousands to tens of thousands of times greater than CO₂. Once emitted, they can persist in the atmosphere for centuries, trapping heat far more effectively than CO₂ and contributing disproportionately to warming.
Understanding the impact of different gases means looking at their warming potential and lifetime. Methane warms the atmosphere about twenty‑eight times more per molecule than CO₂ over a 100‑year period, but it only lasts about a decade. Nitrous oxide is even more powerful; some studies note that nitrous oxide warms the atmosphere roughly 300 times more than CO₂ per molecule. Meanwhile, fluorinated gases can have warming potentials reaching tens of thousands of times greater than CO₂.
The good news is that many of these emissions can be reduced through existing technologies and policy measures. Transitioning to renewable energy reduces CO₂ emissions, while better manure management and dietary changes for livestock can cut methane. Precision agriculture and reducing synthetic fertilizer use helps lower nitrous oxide emissions. Regulations that phase out high‑global‑warming‑potential refrigerants and replace them with safer alternatives also make a difference. Although greenhouse gases are essential in moderation, the current concentration—driven by human activities—makes climate change one of the defining challenges of our time. Policymakers and individuals alike must understand which gases are most harmful and implement targeted solutions to curb their release.
Band Score 5.5Some governments are adopting policies that foster knowledge on Greenhouse Gases in society. The number of gases coming from the planet to the atmosphere are numerous. Indeed, these natural emissions represents a meaningful process that is imperative for our daily live. Some are very common emission such as methane, carbon dioxyde and water vapour. This phenomena contributes in blocking big radiation rays coming from the sun. This essay will discuss, why it is important to be aware of the meaning of greenhouse gases. And how it interves in the nature to contribute in our well-being. Fistly, every gases process has its own life different from others emission. Methane is a significant gas present in on the underground or below the the sea water. It solely evaporates with the heat on the atmosphe. It flies over until forming a protection on the sky, just as a barrier that prevent drastics waves of radioactivity to reach the land. Water evaporation is additionaly a emission that itself evaporates on the sky, joining other emission to form a big cap.
Band Score 6Some children spend hours every day on their smartphones. Why is this the case? Is it a positive or negative trend? It can be clearly noticed that nowadays majority of youngsters are always spending their time using their phones. One of the major reasons for this may be the wide accessibility and multi-functions of the mobile devices. It will, of course, lead to negative impacts on their further life if it is not prevented immediately. There are several main reasons why not only young people, but also the elderly tend to be addicted to the smartphones. Firstly, in today`s modernised and automated era almost every human activity, even the minor ones, are being done with the help of smart tools as well as the phones. Nobody has to put much effort on spending a lot of time and doing something. Even the assignments that are given in the school or university programmes are also easily completed through the Internet and AI which is, in its turn, one of the main functions of the smartphones. The life is continuing to be easy for the humanity and it is affecting every member of the society. However, it is mostly noticed in the lifestyle and behaviour of the youth which can get worse and worse as the time passes, leading to more bad consequences. As the coin has two sides, there are some measurable points that have to be taken into account to tackle with the problem. If the children are engaged in more social activities such as having a great time in the neighbourhood, taking part in different festivals and so on, they could be distracted from their cell phones step by step. In this occasion, parents should be careful and active to grab their children`s attention with other interesting things and events so that they could prevent the negative drawbacks which may be resulted from the massive use of telephones. taking everything into consideration, although smartphones and other modern devices are being invented in ordet ro ease the life, it would be great if everyone used them in proper way and limit.