Essentially all climate data has been tampered with and inflated over the last decade.
In the 1990 IPCC report, they showed 10 cm rise in sea level over the previous century.
literature propaganda shows almost double that rise over the same time period.
The graph below superimposes the current tampered data, on top of the 1990 IPCC data. Note that the current cheat begins at about 1920, and increases over time.