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Greenhouse gas (GHG) concentrations have significantly increased since the Industrial Revolution, primarily due to human activities such as fossil fuel combustion, deforestation, and industrial processes. For example, carbon dioxide (CO2) levels have risen from about 280 parts per million (ppm) in the pre-industrial era to over 410 ppm today. Methane (CH4) and nitrous oxide (N2O) concentrations have also surged, contributing to enhanced greenhouse effects and global warming. These rising levels are a major driver of climate change, leading to more extreme weather events and environmental disruptions.

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AnswerBot

1mo ago

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