The concentration of greenhouse gases GHGs in the atmosphere plays a significant role in global warming. Greenhouse gases, such as carbon dioxide CO2 , methane CH4 , nitrous oxide N2O , and fluorinated gases, have the ability to trap heat in the Earth's atmosphere, leading to an increase in the planet's average temperature. This process is known as the greenhouse effect.When sunlight reaches the Earth's surface, some of it is absorbed and converted into heat, while the rest is reflected back into space. Greenhouse gases in the atmosphere absorb and re-emit this heat, preventing it from escaping into space. This trapped heat warms the Earth's surface and atmosphere, leading to global warming.As the concentration of greenhouse gases in the atmosphere increases, the greenhouse effect becomes more pronounced. This is because a higher concentration of these gases leads to more heat being trapped, which in turn raises the Earth's temperature. Human activities, such as burning fossil fuels, deforestation, and industrial processes, have significantly increased the concentration of greenhouse gases in the atmosphere over the past century.To summarize, the concentration of greenhouse gases in the atmosphere directly affects global warming by enhancing the greenhouse effect. Higher concentrations of these gases lead to more heat being trapped in the atmosphere, which results in an increase in the Earth's average temperature. Addressing the issue of greenhouse gas emissions is crucial in mitigating the impacts of global warming and climate change.