Global warming refers to the long-term increase in Earth's average surface temperature due to human activities, primarily the emission of greenhouse gases (GHGs) such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). These gases trap heat in the Earth's atmosphere, leading to the greenhouse effect and a rise in global temperatures.
The primary source of these GHG emissions is the burning of fossil fuels for energy, such as coal, oil, and natural gas, along with deforestation and certain agricultural practices. These activities release large amounts of carbon dioxide and other GHGs into the atmosphere, enhancing the natural greenhouse effect and causing the planet to warm at an accelerated rate.
Global warming has far-reaching environmental, social, and economic consequences, including rising sea levels, more frequent and severe heatwaves, droughts, and storms, shifts in precipitation patterns, melting glaciers and polar ice caps, ocean acidification, and disruptions in ecosystems and biodiversity. These changes can lead to environmental refugees, food and water scarcity, increased conflicts, and economic instability.
Addressing global warming requires international cooperation to reduce GHG emissions, transition to renewable energy sources, improve energy efficiency, conserve forests, and adapt to the changes that are already underway. Efforts to combat global warming also involve raising awareness, promoting sustainable practices, and implementing policies and agreements, such as the Paris Agreement, aimed at limiting global temperature rise and mitigating its impacts.
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