Just in time for the election.
Two data points from 2008:
In October, the IPCC announced the hottest September ever. This factoid became a part of Barack Obama’s stump speech, and he flogged it all the way to Election Day.
Then two days after the election, the IPCC announced that the September data for all of Russia had mistakenly been replaced with the temperatures from August. Whoopsie! Without the error, September was not the warmest ever, and was actually cooler than previous years.
Whoopsie!
Then in December, NASA announced that Arctic Ice had decreased dramatically, and was the least ever recorded by a wide margin. This factoid wound up being an important element in Obama’s Inaugural Address, and was a basis for his early climate policies. Then, two weeks after the election, NASA announced that the ice detectors on the satellite were mis-calibrated, and that there was no decrease in arctic ice after all. Whoopsie!
I guarantee the correction to this data will come out in mid-November. Whoopsie!
Remember to look surprised.