Global Warming in the Past

We all need to be concerned about the impact of human activities on climate change, but the media hype suggesting that global warming is something new is simply not true. Science News magazine reported data on global warming in the past, going back to the Paleozoic era over 485 million years ago.

The data show that temperatures reached nearly 95 degrees Fahrenheit (35 degrees Celsius) three different times in Earth’s history. The time of the coolest temperatures is the period in which we are living. Earth cooled about three million years ago, reaching 53.6 degrees Fahrenheit (12 degrees Celsius). According to NASA, the present average global surface temperature is 59 degrees Fahrenheit (15 degrees Celsius). It appears that our planet is heading into a warm cycle, which humans contribute to, but they are not the only cause.

The media and politicians sometimes present an alarmist view of the future to attract more attention. There has been global warming in the past, and while humans will be affected by future climate change, there are many contributing factors.

— John N. Clayton © 2025

Reference: Science News magazine for August 2025 (page 35)