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Greenhouse gases (GHGs) are compounds crucial to Earth's climate system. They are essential for maintaining the planet's temperature, but human actions have greatly raised their levels, causing global warming and climate change. Comprehending these gases and their effects is key to creating effective climate change mitigation strategies.<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>[https://www.grepper.com/profile/joseph-yin Low carbon] dioxide (CO2) is the most common GHG, mainly released from burning fossil fuels like coal, oil, and natural gas for energy and transportation. Deforestation and specific industrial processes also emit large quantities 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. Though methane stays in the atmosphere for less time than CO2, its high GWP makes it essential to target in mitigation efforts.<br><br>Nitrous oxide (N2O) is emitted from agricultural and industrial activities and during fossil fuel and waste combustion. Nitrous oxide, with a GWP nearly 300 times CO2, is a potent GHG, albeit in much smaller atmospheric amounts.<br><br>Fluorinated gases include hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF8), among others. These synthetic gases are utilized in various industrial applications like 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. Reducing GHG emissions needs a unified global effort, including policy changes, technological innovation, and shifts in consumer behavior.<br><br>Greenhouse gases are pivotal in climate change discussions. While they are necessary for life on Earth, human activities have disrupted their natural balance, leading to significant environmental challenges. Addressing these challenges requires a comprehensive understanding of GHGs and coordinated action to reduce their emissions and mitigate their effects.