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Greenhouse gases (GHGs) are a group of compounds that play a critical role in Earth's climate system. They are essential for maintaining the planet's temperature, but human activities have significantly increased their concentrations, leading to global warming and climate change. Understanding these gases and their impact is crucial for developing effective strategies to mitigate climate change.<br><br>The primary greenhouse gases include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and fluorinated gases. Each gas has unique sources and different abilities to trap heat, termed as their global warming potential (GWP).<br><br>Carbon dioxide (CO2) is the most prevalent GHG, largely emitted through the burning of fossil fuels such as coal, oil, and natural gas for energy and transportation. Deforestation and certain industrial processes also release significant amounts of CO2. Although CO2 is less potent on a per-molecule basis than other GHGs, its abundance makes it the leading contributor to human-induced climate change.<br><br>Methane (CH4) is a highly potent GHG, with a GWP over 25 times greater than CO2 over a century. Methane is released during coal, oil, and natural gas production and transport, and from livestock, agriculture, landfills, and waste treatment. Despite its shorter atmospheric lifetime compared to CO2, methane's high GWP makes it a critical target for mitigation efforts.<br><br>Nitrous oxide (N2O) is emitted from agricultural and industrial activities and during fossil fuel and waste combustion. With a GWP nearly 300 times that of CO2, nitrous oxide is a powerful greenhouse gas, though it is present in the atmosphere in much smaller concentrations.<br><br>Fluorinated gases encompass hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF8), among others. These synthetic gases are used in a variety of industrial applications, including refrigeration, air conditioning, and electronics manufacturing. Fluorinated gases have extremely high GWPs, making even small emissions significant contributors to climate change.<br><br>The effects of greenhouse gases go beyond just warming the planet. They contribute to extreme weather events, sea level rise, and shifts in ecosystems and biodiversity. Mitigating GHG emissions requires a concerted global effort, encompassing policy changes, technological innovation, and changes in consumer behavior.<br><br>Greenhouse gases are central to the discussion on climate change. While they are necessary for life [https://artvee.com/members/josephvyin/profile/ Read More On this page] Earth, human activities have disrupted their natural balance, leading to significant environmental challenges. Tackling these challenges demands a thorough understanding of GHGs and coordinated efforts to cut their emissions and mitigate their impacts.