The primary contributors to climate change include greenhouse gases such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). These gases are mainly produced by human activities like burning fossil fuels, deforestation, and industrial processes. Additionally, agriculture and waste management practices release significant amounts of methane and nitrous oxide. The accumulation of these greenhouse gases in the atmosphere traps heat and leads to global warming, which results in various environmental impacts such as rising sea levels, more frequent extreme weather events, and shifts in ecosystems.