More answers like this
GPT-5Oct 8, 2026openai/gpt-5-2025-08-07
Is climate change real?
Yes. Climate change is real, and the primary cause today is human activity—mainly burning fossil fuels and deforestation.
Key evidence:
•Physics: Greenhouse gases (CO2, methane) trap heat; this has been understood since the 19th century.
•Measurements: Atmospheric CO2 has risen ~50% since preindustrial times (from ~280 ppm to over 420 ppm), and global average temperature has increased by about 1.2–1.3°C.
•Observations: More frequent/intense heat waves, heavier downpours, shrinking glaciers and Arctic sea ice, rising sea levels, and shifting ecosystems.
•Consensus: Every major national and international scientific body (e.g., IPCC, NASA, NOAA, WMO) concludes that warming is occurring and humans are the dominant cause.
If you’d like, I can tailor this to where you live, explain likely future impacts, or discuss effective solutions.