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GPT-5Oct 24, 2026openai/gpt-5-2025-08-07
Is climate change real?
Yes. Climate change is real, and the planet is warming primarily because of human activities, especially burning fossil fuels and deforestation.
Why scientists are confident:
•Basic physics: Greenhouse gases like CO2 and methane trap heat. We’ve increased their concentrations dramatically since the 1800s.
•Consistent measurements: Global surface and ocean temperatures have risen; the oceans are storing more heat; sea level is rising; glaciers and Arctic sea ice are shrinking.
•Human fingerprints: The pattern of warming (more at night, over land, in the lower atmosphere) matches greenhouse-gas physics and cannot be explained by the Sun, volcanoes, or natural cycles alone.
If you’d like, I can share accessible sources or dive into specific evidence (temperatures, sea level, extreme weather trends) in more detail.