Climate change is a natural process that has occurred throughout Earth's history. Here's why:

* Earth's Orbit: The Earth's orbit around the sun isn't perfectly circular; it varies over long periods. These variations affect the amount of solar radiation reaching Earth, influencing climate.

* Solar Activity: The sun's energy output also fluctuates naturally. Changes in solar radiation can warm or cool the planet.

* Volcanic Activity: Large volcanic eruptions release massive amounts of gases and particles into the atmosphere, which can influence global temperatures and weather patterns.

* Continental Drift: The movement of tectonic plates over millions of years changes the configuration of continents and ocean currents, affecting climate.

While human-induced pollution is accelerating climate change at an alarming rate, it's crucial to remember that climate change is a natural phenomenon that has happened for eons.