In order to push the global warming/climate change scam, the MWP and LIA had to be eliminated.
Mikey Mann erased the MWP and LIA, and threw in an added bonus of a big spike after 1960.
President Obama laughs at anyone who doesn’t think this is top quality, settled science.
Climategate E-mails show that climate scientists wanted to get rid of the 1940 temperature spike. Part of that strategy was to invert it in the Southern Hemisphere, which they did.
From: Tom Wigley <[email protected]>
To: Phil Jones <[email protected]>
Subject: 1940s
Date: Sun, 27 Sep 2009 23:25:38 -0600
Cc: Ben Santer <[email protected]>It would be good to remove at least part of the 1940s blip, but we are still left with “why the blip”.
The 1990 IPCC Report showed that the Southern Hemisphere cooled from 1948 to 1966, but GISS has reversed that into a strong warming trend.
I normally focus on NASA and NOAA altering the temperature record of the past 150 years, but once in a while it is a good idea to remember that the same alteration is being committed with the long term temperature record too. As of 1990, the IPCC showed that the MWP was much warmer than the 20th century.
It is well known that trees grew in Greenland when the Vikings lived there. Greenland is too cold for trees now.
The wineries of England competed with France at that time, but only the southern fringes of England are marginally suitable for wine production now.
But facts don’t matter in modern climate science. It is about keeping politicians like Barack Obama happy, so after the year 2000 they simply erased the MWP and created the hockey stick. 
If I was from Ecuador, I would be really pissed off.
“I’m not a scientist either,” Mr. Obama told this young audience, “but we’ve got some good ones at NASA. I do know the overwhelming majority of scientists who work on climate change, including some who once disputed the data, have put the debate to rest.”
At Commencement, Obama Mocks Lawmakers Who Deny Climate Change – NYTimes.com
What the president is saying is that he is making up statistics about a group of people he doesn’t know much about, and that he understands those people generally keep their mouth shut because they like to keep their funding and job – and avoid McCarthyite attacks like Richard Tol and others have faced.
In my previous post, I showed how NASA has altered pre-1999 US temperatures relative to their previously published data.
The next graph shows their current adjustments since 1998, calculated across all stations with no missing data since 1990. Their post 1998 adjustments are warming the US at 3.6F/century.
In 1999, NASA reported the US was in a 70 year cooling trend.
Whither U.S. Climate?
By James Hansen, Reto Ruedy, Jay Glascoe and Makiko Sato — August 1999
Empirical evidence does not lend much support to the notion that climate is headed precipitately toward more extreme heat and drought.
in the U.S. there has been little temperature change in the past 50 years, the time of rapidly increasing greenhouse gases — in fact, there was a slight cooling throughout much of the country (Figure 2)
That story wasn’t scary and wasn’t going to raise any money for NASA, so they massively altered the data to create a warming trend. The 2014 version adds 1.3C/century warming from 1976 to 1998, which didn’t exist 15 years ago.
data.giss.nasa.gov/gistemp/graphs_v3/Fig.D.txt
The thermometer data which NASA uses to generate the temperatures, shows the US cooling over the past 90 years
Obama Compares Skepticism Towards Climate Change To Believing Moon Made Of Cheese
Obama Uses Commencement Speech To Talk About Climate Change | The Daily Caller
The only scientist to ever walk on the moon is a prominent climate skeptic. Harrison Schmitt probably does not believe that the moon is made out of cheese.
Forty years ago, climatologists reported 1ºC global cooling, and warned that cooling was going to make erratic weather and starve us to death
The reported cooling has since been erased by government scientists, who are now are paid to push the global warming agenda rather than the global cooling agenda.
