I'll search the latest scientific evidence on humanity's role in climate change.
Yes, according to the overwhelming scientific evidence, humans are responsible for modern climate change - specifically as the primary and dominant cause.
Scientific Consensus
•The scientific consensus is that the Earth's climate system is unequivocally warming, and that it is extremely likely (meaning 95% probability or higher) that this warming is predominantly caused by humans.
•Yes, the vast majority of actively publishing climate scientists – 97 percent – agree that humans are causing global warming and climate change.
•Today, 97% to 99.9% of climate scientists agree that climate change is happening and that human activity is the primary cause.
•Multiple independent efforts show agreement in the high‑90s percentiles, with studies reporting consensus figures from ~97% to greater than 99%.
What the IPCC and NASA Conclude
The United Nations Intergovernmental Panel on Climate Change (IPCC) - the UN body for evaluating climate science with agreement of all 195 member countries - has made its strongest statement:
> "It is unequivocal that human influence has warmed the atmosphere, ocean and land"
A more detailed summary states:
> It is unequivocal that human influence has warmed the atmosphere, ocean and land
Other IPCC assessments state:
•there is at least 95% certainty that human activities are the principal cause
•it is "unequivocal" that human activity is driving climate change, and it's affecting Earth's oceans, atmosphere, ice and biosphere in ways that are "widespread and rapid"
NASA summarizes:
•Scientists attribute the global warming trend observed since the mid-20th century to the human expansion of the "greenhouse effect" — warming that results when the atmosphere traps heat radiating from Earth toward space
•In its Sixth Assessment Report, the Intergovernmental Panel on Climate Change concluded that it is unequivocal that the increase of CO2, methane, and nitrous oxide in the atmosphere over the industrial era is the result of human activities and that human influence is the principal driver of many changes observed across the atmosphere, ocean, cryosphere and biosphere
How Humans Are Causing It
•Over the last century, burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2)
•The industrial activities that our modern civilization depends upon have raised atmospheric carbon dioxide levels by nearly 50% since 1750. This increase is due to human activities, because scientists can see a distinctive isotopic fingerprint in the atmosphere.
•Climate modelling predicts that human activities are causing the release of greenhouse gases and aerosols that are affecting Earth's energy budget. Now, a NASA study has confirmed these predictions with direct observations for the first time: radiative forcings are increasing due to human actions
•The greenhouse effect is essential to life on Earth, but human-made emissions in the atmosphere are trapping and slowing heat loss to space
Why It Is Not Natural Causes
Natural factors (solar activity, orbital changes, volcanic activity) have caused climate to change in the past, but they cannot explain current warming:
•While the Sun has played a role in past climate changes, the evidence shows the current warming cannot be explained by the Sun
•Since 1750, the average amount of energy from the Sun either remained constant or decreased slightly
•Climate models that include solar irradiance changes can't reproduce the observed temperature trend over the past century or more without including a rise in greenhouse gases
•Successive reports by the Intergovernmental Panel on Climate Change have evaluated the causes of climate change. The most recent special report confirms that the observed changes in global and regional climate over the last 50 or so years are almost entirely due to human influence on the climate system and not due to natural causes