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Summary

The Earth’s climate has fluctuated over millions of years, driven by factors like CO₂ and orbital changes. Recent warming, since 1970, is primarily due to human activities, especially the burning of fossil fuels, resulting in a substantial increase in CO₂. Continued carbon emissions at current or higher levels could lead to a significant temperature rise, similar to a past warming event, with long-lasting effects. It’s sensible to avoid further CO₂ emissions to prevent potential adverse consequences.