LESSON 2 · Climate Change: Facts, Not Fear
The Scientific Consensus
Over ninety-seven percent of actively publishing climate scientists agree that human activities cause global warming. This emerged from decades of independent research across dozens of countries, using different methods and datasets, not from political coordination.
Every major scientific organization has confirmed human-caused climate change, and the IPCC process synthesizes thousands of papers each assessment cycle. Remaining uncertainties concern the precise speed and magnitude of future change, not whether warming is happening or whether humans cause it.