Is climate change real?

Yes, climate change is real. This is one of the most well-established findings in modern science, supported by multiple independent lines of evidence and the overwhelming consensus of climate scientists worldwide.

Here's what we know:

The evidence is clear and multi-faceted:

•Global average temperatures have risen significantly since the late 19th century, with the most rapid warming occurring in recent decades

•Ocean temperatures are rising, and sea levels are increasing due to thermal expansion and melting ice

•Arctic sea ice, glaciers, and ice sheets are shrinking globally

•Ocean acidification is increasing as oceans absorb more CO2

•Extreme weather events (heat waves, heavy precipitation, droughts) have become more frequent and intense in many regions

The cause is well understood:
The scientific consensus—based on decades of research from thousands of scientists across many countries—is that human activities, particularly the burning of fossil fuels (coal, oil, and gas), are the dominant driver of the warming observed since the mid-20th century. This happens primarily through the emission of greenhouse gases like carbon dioxide and methane, which trap heat in the atmosphere.

Scientific consensus:
Major scientific organizations worldwide—including NASA, NOAA, the IPCC (Intergovernmental Panel on Climate Change), national academies of science from dozens of countries, and virtually every major scientific body with relevant expertise—agree on this basic picture. Studies of peer-reviewed climate research consistently find that over 97% of actively publishing climate scientists agree that recent warming is primarily human-caused.

If you'd like, I can go deeper into any specific aspect—such as the evidence for human causation, regional impacts, projections for the future, or how scientists distinguish natural climate variability from human-driven change.

Is climate change real?

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