In the distant past, palm trees grew in Greenland.
Greenland wasn’t quite as far north 250 million years ago as it is now.
The Arctic Ocean is believed to have been ice-free around the time Stonehenge was built, with atmospheric CO2 at pre-industrial levels.
Hannibal took elephants across the Alps in 181 BC.
It is also known that the Arctic was much warmer one thousand years ago, with atmospheric CO2 at pre-industrial levels. Then the Arctic got much colder and the Vikings in Greenland froze to death.
The 1990 IPCC report recognized the warmth of 1,000 years ago, and subsequent cooling into the 17th century. This was called the Medieval Warm Period and Little Ice Age.
NASA’s James Hansen also recognized that in 1983.
Global temperature trend is based on temperatures in central England, the tree limit in the White Mountains of California, and oxygen isotope measurements in the Greenland ice (W. Dansgaard of the Geophysical Isotope Laboratory, University of Copenhagen, pers. comm.), with the temperature scale set by the variations in the last 100 years
Glaciers in the Aps were either small or non-existent one thousand years ago.
The glaciers expanded rapidly during the Little Ice Age, and then started retreating again about 200 years ago. Glacier Bay, Alaska retreated 50 miles between 1790 and 1880.
Greenland’s Jakobshavn Glacier retreated more than two feet per day from 1850 to 1903.
Michael Mann and the IPCC have since erased the Medieval Warm Period and Little Ice Age.
The press is currently hysterical about Arctic sea ice, predicting its imminent demise.
Thus continuing a long line of failed predictions.
In the real Arctic, sea ice extent started and ended 2019 as the highest in five years.
Ice extent is very close to the 1981-2010 median.
Arctic sea ice extent is highest for the date in eight years.
And there has been no trend in Arctic sea ice extent since 2007, when climate alarmists started making the their forecasts of imminent doom.
The National Climate Assessment shows Arctic sea ice rapidly declining since 1979.
Alarmists claim that they start their graphs in 1979, because that is the start of satellite records.
Sea ice extent has been monitored by passive microwave instruments on satellite platforms since 1979, providing a 39-year long perspective on changing coverage over the last several decades.
But the 1990 IPCC report shows that they are not being honest. satellite records go back to the early 1970s, when “sea ice extent was significantly less.”
In the 1985 DOE Report, Vinnikov showed that Arctic sea ice declined sharply until the century low in the mid-1950s, and then started to increase again.
This chart combines the 1985 and 1990 Vinnikov graphs, and shows that government agencies now start their sea ice graphs at the century maximum.
The graphs also start at the coldest year on record in Iceland.
When I show the fraud going on with sea ice extent, climate alarmists invariably try to change the subject to ice age and thickness, pointing out that sea ice was thick and old in the late 1970s and early 1980s.
But in 1922, the ice between Alaska and the North Pole was thin, rotten first year ice.
The Arctic was rapidly melting, and there was no ice around Svalbard.
Now there is lots of ice around Svalbard.
Raw data shows that the eastern Arctic was very warm 80 years ago,
But NASA is constantly tampering with the data, and frequently makes the warmth of the 1940s disappear.
In Climategate emails, the world’s leading climate scientists openly discussed their desire to ease the warmth of the 1940s.
The “thin, rotten ice” of 1921 was preceded by very warm weather in 1921.
This animation shows CRUTem anomalies for all of 1921.
In the US, 1921 was the second warmest year on record, after 1934.
The New York Times reported that Earth has a fever.
Encinal, Texas had 157 consecutive days above 90F in 1921, the Texas record.
The heat of 1921 and other hot years from the past is inconvenient for government agencies, so they alter the data to make it disappear.
Nighttime temperatures in 1921 were also fourth highest in the US..
Before data tampering, Texas’ hottest year was 1921.
NOAA used to show 1921 as being the hottest year in Texas, but sometime after 2012, they altered the data to make Texas warm past disappear.
Global temperature graphs also make no sense, with thin, rotten ice in 1922, when temperatures were claimed to be cold, and thick multi-year ice in 1983, when temepratures were supposed to be hot.
In a December 2018 article, NASA claimed that Arctic sea ice had lost two-thirds of its thickness since 1958.
But this New York Times article from 1958 shows that sea ice thickness in 1958 was two meters, same as December, 2018.
The decline in Arctic sea ice from the 1920s until the 1950s was widely reported.
Glaciers in Glacier National Park were forecast to disappear before 1950.
The subsequent cooling and increase in sea ice after after the 1950s, was also widely reported.
International Team of Specialists Finds No End in Sight to 30‐Year Cooling Trend in Northern Hemisphere
By WALTER SULLIVAN JAN. 5, 1978
A gradual increase in area of the northern circumpolar vortex, the massive flow of frigid air around the Arctic, has been recorded by Drs. Angell and Korshover. In 1976 its southern’ extent was the greatest in 10 years and last winter it was 1 percent larger than in any previous winter observed.
Snow and ice cover in the Northern Hemisphere have varied greatly but there has been a net increase according to a satellite photograph analysis by Dr George J. Kukla of Columbia University’s Lamont‐Doherty Geological Observatory. This has been most marked in the spring when so highly reflective a cover returns much solar energy into space at a time of intense solar radiation.
Nothing about Arctic alarmism or the official government temperature record makes any sense, but facts don’t matter to climate alarmists.
Not only are the glaciers growing, but they are also shrinking at a record rate.