Climate change is one of the greatest challenges facing humanity today. The Earth’s average temperature has been rising due to the increased concentration of greenhouse gases such as carbon dioxide, methane, and nitrous oxide in the atmosphere. These gases trap heat and cause the phenomenon known as global warming. Human activities like burning fossil fuels, deforestation, and industrialization have accelerated this process, leading to serious environmental consequences. One of the most visible effects of climate change is the melting of glaciers and polar ice caps. This contributes to rising sea levels, which threaten coastal cities and small island nations. Millions of people living in low-lying areas are at risk of losing their homes and livelihoods. Apart from rising seas, climate change has also increased the frequency of extreme weather events such as floods, droughts, cyclones, and heat waves. These events not only damage infrastructure but also disrupt agriculture and food supply. Agriculture is highly vulnerable to changing climate conditions. Uncertain rainfall and rising temperatures affect crop yields, causing losses to farmers and increasing food insecurity. Developing countries, where agriculture employs a large portion of the population, are particularly at risk. In addition, biodiversity is under severe threat as many plant and animal species struggle to adapt to rapidly changing habitats. To address these challenges, the concept of sustainable development has gained importance. Sustainable development refers to meeting the needs of the present without compromising the ability of future generations to meet their own needs. It emphasizes a balance between economic growth, environmental protection, and social well-being. Renewable sources of energy such as solar, wind, and hydro power play a key role in reducing dependence on fossil fuels. By adopting cleaner energy alternatives, countries can lower greenhouse gas emissions and move towards a greener future. Similarly, afforestation and conservation of forests are essential for maintaining ecological balance and absorbing excess carbon dioxide. Governments across the world have recognized the urgency of the problem. The Paris Agreement, signed in 2015, brought together nations to limit global warming to well below 2°C above pre-industrial levels. Countries are now focusing on reducing emissions, improving energy efficiency, and promoting sustainable technologies. At the same time, individuals also have a role to play by adopting eco-friendly practices in daily life, such as conserving electricity, using public transport, recycling waste, and reducing plastic consumption. Education and awareness are crucial in the fight against climate change. When people understand the causes and consequences of their actions, they are more likely to adopt sustainable lifestyles. Young generations, in particular, must be empowered with knowledge and skills to build a cleaner and more resilient world. In conclusion, climate change is not just an environmental issue but a social and economic one as well. It affects health, agriculture, industry, and the very survival of communities. Sustainable development provides a pathway to balance progress with responsibility. If governments, businesses, and citizens work together, it is possible to slow down global warming and protect the planet for future generations. The choices we make today will determine the quality of life tomorrow.