There is unequivocal evidence that Earth is warming at an unprecedented rate — and human activity is the principal cause.
For billions of years, Earth’s climate has changed naturally. Yet the pace of warming since the mid-20th century is unlike anything seen in the past 10,000 years. Additionally, over the last 800,000 years of ice core data, the planet has never seen the rate of increase in CO2 levels as we have from the mid-20th century until now. There is no question, the human industrial revolution is the cause
The Intergovernmental Panel on Climate Change (IPCC) states clearly:
“Since systematic scientific assessments began in the 1970s, the influence of human activity on the warming of the climate system has evolved from theory to established fact.”
What the Evidence Shows
Modern satellite data and natural archives — such as ice cores, rocks, and tree rings — all tell the same story: the planet is warming rapidly. From rising temperatures to melting glaciers, the signals are everywhere.
- Global Temperatures Are Rising: Earth’s surface temperature has increased about 2°F (1°C) since the late 19th century, with most of the warming occurring in the past 40 years.
- Oceans Are Heating Up: Over 90% of the extra heat is stored in the oceans, which have warmed by 0.67°F (0.33°C) since 1969.
- Ice Sheets Are Shrinking: Greenland and Antarctica are losing hundreds of billions of tons of ice each year.
- Glaciers Are Retreating: From the Andes to the Himalayas, glaciers are melting faster than ever.
- Snow Cover Is Declining: Northern Hemisphere snow is melting earlier and lasting for shorter periods.
- Sea Levels Are Rising: Global sea levels have climbed by about 8 inches (20 cm) over the last century — and the rate is accelerating.
- Arctic Sea Ice Is Vanishing: Both the extent and thickness of Arctic ice have declined sharply.
- Extreme Weather Events Are Increasing: Record heatwaves and intense rainfall events are becoming more frequent.
- Ocean Acidification Is Rising: The ocean has absorbed up to 30% more CO₂, becoming 30% more acidic since the Industrial Revolution.
Why It Matters
The data are clear. The current warming trend is not part of a natural cycle — it’s driven by human activities that release greenhouse gases into the atmosphere. Carbon dioxide levels are rising 250 times faster than after the last Ice Age, trapping heat and disrupting the delicate balance of Earth’s climate system.
The consequences touch every corner of our planet — from stronger storms and wildfires to vanishing coral reefs and coastal flooding. The science leaves no room for doubt: humanity is the driver, and action is the solution.
About the Author
Dr. Cezhan Ambrose, DBA is a Post-Doctoral Research Scholar at Pepperdine University and a finance lecturer specializing in corporate governance, ESG integration, and sustainable investment strategy. His work examines how data-driven governance and environmental performance can enhance long-term financial returns.
