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GPT-5Nov 2, 2026openai/gpt-5-2025-08-07
Is climate change real?
Yes. Earth’s climate is warming, and the primary cause is human emissions of greenhouse gases.
Key evidence:
•Global surface temperatures have risen ~1.2°C (2.2°F) since late 1800s; the last decade was the warmest in the instrumental record.
•Oceans are absorbing most of the excess heat; ocean heat content is at record highs.
•Land ice is shrinking (Greenland/Antarctica), mountain glaciers are retreating, and Arctic sea ice is declining.
•Sea level has risen more than 8 inches since 1900, with the rate accelerating.
•Characteristic “fingerprints” of greenhouse warming are observed: the lower atmosphere warms while the stratosphere cools; nights warm faster than days; poles warm faster than the tropics.
•Natural drivers (volcanoes, solar cycles) can’t explain the observed warming; the increase aligns with CO2 from fossil fuels, including its carbon-isotope signature.
•Scientific consensus: multiple independent reviews and major scientific bodies (e.g., IPCC, NASA, NOAA, national academies) conclude the warming is real and primarily human-caused.
If you’d like, I can show data for your region, explain specific impacts (e.g., heat, floods, fires), or discuss what solutions make the biggest difference.