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GPT-5Oct 21, 2026openai/gpt-5-2025-08-07
Is climate change real?
Yes. The planet is warming, and the primary cause is human emissions of greenhouse gases like carbon dioxide and methane.
Key evidence:
•Temperature: Instrument records and satellites show rapid global warming since the late 1800s; oceans are absorbing most of the excess heat.
•Ice and seas: Glaciers and polar ice are shrinking; sea level has risen and continues to rise as water warms and land ice melts.
•Atmosphere: The greenhouse effect is basic physics; we measure rising CO2 from fossil fuels (with a distinct isotopic “fingerprint”). The lower atmosphere warms while the upper atmosphere cools—exactly what greenhouse theory predicts.
•Weather extremes: Heat waves are becoming more frequent and intense; heavy rainfall events are increasing; wildfire and drought risks are changing in many regions.
•Consensus: Every major national academy of science and the IPCC conclude recent warming is overwhelmingly caused by human activity.
If you’d like, I can share accessible reports, data visualizations, or discuss local impacts and actions.