Yes. The scientific consensus is that human activities are the dominant cause of the climate warming observed since the mid-20th century.
Key Evidence
•Greenhouse gas emissions: Burning fossil fuels (coal, oil, gas), cement production, and land-use changes (especially deforestation) have sharply increased atmospheric CO₂ from ~280 ppm pre-industrial to over 420 ppm today. Methane and other gases have also risen. These trap heat (the greenhouse effect). Isotopic analysis (e.g., depletion of ¹³C and ¹⁴C) confirms the added CO₂ comes primarily from fossil carbon, not natural sources.
•Observed warming matches human forcing: Global surface temperatures have risen ~1.1–1.2°C since the late 19th century, with the bulk since the 1970s. Climate models that include only natural factors (solar output, volcanoes, orbital cycles) cannot reproduce this warming; models that include anthropogenic greenhouse gases and aerosols match the observations closely. The troposphere is warming while the stratosphere cools—a fingerprint of greenhouse forcing, not increased solar activity.
•Rate and attribution: The current rate of warming is unusually rapid compared with natural Holocene variability. Multiple independent lines (instrumental records, satellites, ocean heat content, glacier/ice-sheet mass loss, sea-level rise, phenology shifts) converge on the same conclusion. The IPCC’s AR6 states it is unequivocal that human influence has warmed the atmosphere, ocean, and land, and that human-caused greenhouse gases are the main driver.
Natural climate variability (ENSO, solar cycles, volcanic aerosols, orbital changes) exists and modulates year-to-year or decade-to-decade weather, but it does not account for the long-term trend. Pre-industrial climate shifts (e.g., glacial-interglacial cycles) were driven by different mechanisms operating over much longer timescales and without the modern pulse of fossil-fuel CO₂.
In short: the physics of greenhouse gases has been understood for over a century; the measurements are robust; and the attribution to human activity is the result of extensive, replicated scientific work—not a matter of opinion.