The Earth is 4.6 billion years old. In that time, countless atmospheric climate variations have pummeled the Earth. Tectonic plates diverge, transform, or converge, creating subduction zones resulting in volcanoes and earthquakes altering the planet. The magnetic poles reverse over and over, and asteroids crash into the Earth. Solar output varies with time. Gravitational influences by forces of the Moon, neighboring planets, and distant galaxies subtly affect the overall climate on Earth. Humanity has populated the Earth only an infinitesimal fraction of the Earth’s existence. The industrialized age was only a microsecond of geological duration and had a negligible impact on Earth’s overall climate. Climate cycles, on a geologic time scale of hundreds, thousands, or millions of years, will never be changed, influenced, or mitigated by human intervention.
Also don’t forget the 40,000 year long earth oscillation or wobble that occurs while rotating. It takes 40,000 years for one wobble. This basically changes the tilt of the earth thus the intensity of the seasons. This is why ice ages occur and end every 40,000 years and not because we drive SUVs or heat our homes. Remember the Great Lakes were still solid ice glaciers a mile thick 10,000 years ago; absolutely nothing to do with humans.