This statement is a valid point but it overlooks some key factors that are relevant to the current climate change issue:

• It is true that the climate of the Earth has fluctuated in the past due to natural cycles and phenomena like changes in the Earth's orbit and axis (Milankovitch cycles). However, the current rapid rate of climate change is far faster than previous natural shifts. The recent increases in atmospheric CO2 and global temperatures are unprecedented in at least the past 800,000 years.

• The major drivers of past climate changes were astronomical cycles and variations. The current climate change is driven by human activities like burning of fossil fuels and deforestation. So while the climate has changed naturally in the past, the present change is due to human impact, not natural causes.

• Natural climate changes in the past occurred over very long time periods, often tens of thousands of years. The current changes are taking place over just decades and centuries. This rapid pace of change poses grave risks to human and natural systems that are adapted to the current climate conditions.

• The impacts of current climate change like rising sea levels, melting permafrost, ocean acidification, etc. pose major threats to society and the environment. Past climate changes, while they certainly impacted the environment, did not threaten global civilization the way the present changes do.

So in summary, while climate change is a natural phenomenon, the ongoing climate change is human-caused and unprecedented in scope, scale, and pace. The statement overlooks these critical distinctions and the severe concerns with the current climate shifts driven by human activity. So it needs some important nuance and qualification.