Is climate change real?
Yes, climate change is real. Earth’s climate is warming at an unprecedented rate in recent history, and the overwhelming scientific consensus is that human activities—primarily the emission of greenhouse gases like CO₂ from burning fossil fuels, deforestation, and other industrial processes—are the dominant cause.[1]
Scientific Consensus
Multiple independent studies of the peer-reviewed literature and surveys of climate scientists show near-unanimous agreement:
This is not based on opinion or a single study but on decades of converging evidence from multiple independent lines of research.
Key Evidence That the Planet Is Warming
These observations come from thermometers, satellites, weather stations, ocean buoys, ice cores, tree rings, and more, analyzed by independent teams (NASA, NOAA, Hadley Centre, etc.) that reach the same conclusions.[5]
Why Humans Are the Main Cause
Climate has always varied naturally over Earth’s history, but the current rapid change (roughly 10 times faster than post-ice-age average rates in some metrics) coincides with the Industrial Revolution and cannot be explained without human emissions.[6]
Addressing Common Counterarguments
Claims that “climate is always changing,” “it’s the sun,” “models are wrong,” “there’s no consensus,” or “it’s a hoax” have been repeatedly examined and do not hold up against the full body of evidence. Climate models from decades ago have skillfully projected the observed warming. The tiny minority of dissenting papers often contain errors or fail replication.
Citations (7)
- https://en.wikipedia.org/wiki/Scientific_consensus_on_climate_change
Backs: “Earth’s climate is warming at an unprecedented rate in recent history, and the overwhelming scientific consensus is that human activities—primarily the emission of greenhouse gases like CO₂ from burning fossil fuels, deforestation, and other industrial processes—are the dominant cause.”
- https://skepticalscience.com/print.php?r=42
Backs: “Over 97% of climate scientists agree that humans are causing global warming (classic figure from earlier analyses).”
- https://news.cornell.edu/stories/2021/10/more-999-studies-agree-humans-caused-climate-change
Backs: “A 2021 analysis of over 88,000 climate-related studies found only a tiny handful of skeptical papers.”
- https://royalsociety.org/news-resources/projects/climate-change-evidence-causes/
Backs: “The human role is described as “unequivocal,” “incontrovertible,” and “beyond scientific dispute.””
- https://www.climate.gov/news-features/climate-qa/what-evidence-exists-earth-warming-and-humans-are-main-cause
Backs: “The rate of warming over the past 50+ years is unprecedented in at least the last 2,000 years.”
- https://archive.ph/2024.10.06-154745/https://science.nasa.gov/climate-change/evidence/
Backs: “Shifts in plant and animal ranges/phenology (e.g., earlier blooming, species moving poleward), increased frequency/intensity of heatwaves, changes in precipitation patterns, and atmospheric/oceanic “fingerprints” consistent with greenhouse forcing (warming in the troposphere, cooling in the stratosphere).”
- https://wmo.int/news/media-centre/climate-change-widespread-rapid-and-intensifying-ipcc
Backs: “IPCC assessments (including AR6) and reviews confirm human influence as the principal driver of changes across the atmosphere, oceans, cryosphere, and biosphere.”