Licchavi Lyceum


Licchavi Lyceum

Intergovernmental Panel on Climate Change (IPCC)

Greenhouse gases are gases that trap heat in the Earth’s atmosphere, contributing to global warming and climate change. In this article, we will explore what greenhouse gases are, their sources, and their impact on the environment.

What are Greenhouse Gases?

Greenhouse gases are gases that trap heat in the Earth’s atmosphere, contributing to the greenhouse effect. The most common greenhouse gases are carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and fluorinated gases such as hydrofluorocarbons (HFCs). These gases occur naturally and also as a result of human activities.

Sources of Greenhouse Gases

Greenhouse gases are emitted from a variety of sources, including:

  • Burning fossil fuels: Carbon dioxide is released when coal, oil, and natural gas are burned for energy.
  • Transportation: Cars, trucks, planes, and other forms of transportation produce carbon dioxide and other greenhouse gases.
  • Agriculture: Methane is produced by livestock, and nitrous oxide is released from the use of fertilizers.
  • Land use changes: Deforestation and land use changes contribute to the release of carbon dioxide.
  • Industrial processes: Fluorinated gases are used in a variety of industrial processes, including refrigeration and air conditioning.

Impact of Greenhouse Gases on the Environment

The buildup of greenhouse gases in the Earth’s atmosphere has a range of negative impacts on the environment, including:

  • Global warming: The Earth’s temperature is rising, leading to more frequent and severe heatwaves, droughts, and other extreme weather events.
  • Sea level rise: As the Earth’s temperature rises, glaciers and ice sheets are melting, leading to a rise in sea levels.
  • Ocean acidification: Carbon dioxide in the atmosphere is absorbed by the oceans, leading to acidification that can harm marine life and ecosystems.
  • Changes in ecosystems: Climate change is leading to changes in ecosystems, with some species struggling to adapt to changing conditions.


Greenhouse gases are a major contributor to climate change, and their impact on the environment is significant. It is important for individuals, businesses, and governments to take action to reduce greenhouse gas emissions and slow the pace of climate change. This can include measures such as investing in renewable energy, reducing energy consumption, and shifting to more sustainable practices in agriculture and industry. By taking action to reduce greenhouse gas emissions, we can help protect the planet for future generations.