From Obama’s climate assessment :
Over the past century, global sea level has risen by about 8 inches. Since 1992, the rate of global sea level rise measured by satellites has been roughly twice the rate observed over the last century.
Satellite measurements of sea level began in 1992, so the claimed comparison is impossible. There isn’t any satellite sea level data from before 1992.
If you do an apples to apples comparison of tide gauges from before/after 1992, there is no acceleration. Obama’s claim of acceleration is based entirely on switching between two uncalibrated measurement systems, a mistake which would get him fired from any engineering job.
The 1990 IPCC report said that there was no acceleration during the 20th century.
Does anyone seriously believe that sea level rise suddenly doubled in 1992?
In 1991, Barack Obama was still a birther – promoting himself as being born in Kenya.