Final answer:
The statement that Earth’s climate has been relatively stable for most of the past 2000 years is false.
Step-by-step explanation:
While it is true that for about 4,000 years leading up to the Industrial Revolution, the global temperatures remained fairly constant with some variations, the past 100 years have seen a temperature increase approximately equivalent to that of the previous 4,000 years. This rapid warming is unprecedented in human history.
There were indeed some fluctuations during the last 2,000 years, such as the Medieval Climate Anomaly and the Little Ice Age, and these were significant although smaller in scale compared to recent changes. The Medieval Climate Anomaly, which allowed the Vikings to colonize Greenland due to ice-free seas, and the Little Ice Age had profound impacts, but they can be explained by natural factors like Milankovitch cycles, solar activity, and volcanic eruptions.
None of these natural factors, however, account for the rapid and sustained rise in global temperatures and carbon dioxide levels we've observed since the Industrial Era.