Yes, climate change is real. This is one of the most robustly established findings in modern science, supported by multiple independent lines of evidence:
Key evidence:
•Temperature records show global average surface temperatures have risen by roughly 1.1–1.2°C since the late 1800s, with the last decade being the warmest on record.
•Ice core and sediment data reveal atmospheric CO2 levels are higher now (over 420 ppm) than at any point in at least the last 800,000 years.
•Direct measurements show CO2 has risen from about 280 ppm (pre-industrial) to over 420 ppm today, primarily from burning fossil fuels.
•Physical impacts are observable and measurable: melting glaciers and ice sheets, rising sea levels, ocean acidification, shifting seasons, and changes in species migration patterns.
•Multiple independent datasets from different countries and institutions (NASA, NOAA, UK Met Office, Berkeley Earth, etc.) using different methodologies all show the same warming trend.
Scientific consensus:
The overwhelming majority of actively publishing climate scientists agree that:
1.The climate is warming
2.Human activity (primarily greenhouse gas emissions) is the dominant cause of the warming observed since the mid-20th century
This conclusion is supported by major scientific organizations worldwide, including national academies of science from dozens of countries, and is based on physics that's been understood for over a century (the greenhouse effect was first described in the 1850s-1890s).
What's actually debated among scientists isn't whether climate change is happening, but details like:
•Precise regional impacts and timing
•Exact sensitivity of climate to CO2 (though the range is well-constrained)
•Best policy responses (this is more political/economic than scientific)
If you're interested in specific aspects—like recent data, regional effects, or particular claims you've encountered—I'm happy to dig into any of those.