In the last few weeks NASA has revealed the overall amount of ice has increased at the Antarctic and the amount of sea ice has also extended. ANTARCTIC temperatures have cooled over the past six years, study finds.

GLOBAL WARMING? NASA says Antarctic has been COOLING for past SIX years

ANTARCTIC temperatures have cooled over the past six years, according to US space agency NASA.

 

By Jon Austin

 

PUBLISHED: 07:51, Sat, Nov 28, 2015 | UPDATED: 12:58, Sat, Nov 28, 2015

 

 

NASA

Heimdal Glacier southern Greenland, from NASA's Falcon 20 aircraft at 33,000 feet above sea level.

An intensive scientific study of both Earth's poles has found that from 2009 to 2016 overall temperature has dropped in the southern polar region.NASA’s Operation IceBridge is an airborne survey of polar ice and has finalised two overlapping research campaigns at both the poles.In the last few weeks NASA has revealed the overall amount of ice has increased at the Antarctic and the amount of sea ice has also extended.Coupled with the latest announcement of slight cooling in the area, it has fuelled claims from climate change deniers that human industrialisation is not having the huge impact on global tenperature as often is claimed.

 

 

 

NASA

Map showing the extent of ice during the NASA studies

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Examiner.com

New paper claims no pause in warming, but unaltered data says otherwise

Thomas Richard

Boston Environmental Policy Examiner

 

November 25, 2015 9:20 AM MST

Photo by Aaron Harris

Environmental activists have plundered Nature's Scientific Reports and released a paper yesterday that they claim removes all doubt there is a global warming pause. After examining 40 peer-reviewed papers that show a global warming hiatus, they claim the papers didn't examine a long enough period of time. In fact, the authors—Stephan Lewandowsky, James Risbey, and Naomi Oreskes—broke the golden rule of science: they started with a predetermined outcome and then cherry-picked the data to fit their conclusion. It also runs counter to the unaltered datasets from leading climate institutions.
The paper assessed the "magnitude and significance of all possible trends up to 25 years duration looking backwards from each year over the past 30 years." Unsurprisingly, the authors thought the papers didn't use a long enough time frame to show a clear global warming pause over the entire global warming "record." Here we document how this extended global warming record has been tampered, altered, and utilized for politicized "green ideology," and how massive alterations were made to both NASA and NOAA's temperature data series.

According to the satellite record (the most accurate), weather balloons, radiosonde data, sea surface temperatures, and weather stations (least accurate), previously unadulterated data from the National Oceanic and Atmospheric Administration (NOAA) and the National Aeronautics and Space Administration Goddard Institute of Space Studies (NASA GISS) data showed a long-term definitive trend: no increase in tropospheric temperatures when the Industrial Revolution began in earnest after World War II.

We do have weather station temperature data, albeit spotty, that goes back to 1881 and it shows regular intervals of warming and cooling, and not the popular upward slope in temperatures used by environmentalists and governments to illustrate dramatic global warming. More on that shortly.

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Next: How NOAA rewrote climate data to hide global warming pause

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Nasa Earth Observatory

Earth is Cooling…No It’s Warming

In 1967 Hansen went to work for NASA’s Goddard Institute for Space Studies, in New York City, where he continued his research on planetary problems. Around 1970, some scientists suspected Earth was entering a period of global cooling. Decades prior, the brilliant Serbian mathematician Milutin Milankovitch had explained how our world warms and cools on roughly 100,000-year cycles due to its slowly changing position relative to the Sun. Milankovitch’s theory suggested Earth should be just beginning to head into its next ice age cycle. The surface temperature data gathered by Mitchell seemed to agree; the record showed that Earth experienced a period of cooling (by about 0.3°C) from 1940 through 1970. Of course, Mitchell was only collecting data over a fraction of the Northern Hemisphere—from 20 to 90 degrees North latitude. Still, the result drew public attention and a number of speculative articles about Earth’s coming ice age appeared in newspapers and magazines.

Initial efforts to observe Earth’s temperature were limited to the Northern Hemisphere, and they showed a cooling trend from 1940 to 1970 (jagged line). Scientists estimated the relative effects of carbon dioxide (warming, top curve) and aerosols (cooling, bottom curve) on climate, but did not have enough data to make precise predictions. (Graph from Mitchell, 1972.)

But other scientists forecasted global warming. Russian climatologist Mikhail Budyko had also observed the three-decade cooling trend. Nevertheless, he published a paper in 1967 in which he predicted the cooling would soon switch to warming due to rising human emissions of carbon dioxide. Budyko’s paper and another paper published in 1975 by Veerabhadran Ramanathan caught Hansen’s attention. Ramanathan pointed out that human-made chlorofluorocarbons (or CFCs) are particularly potent greenhouse gases, with as much as 200 times the heat-retaining capacity of carbon dioxide. Because people were adding CFCs to the lower atmosphere at an increasing rate, Ramanathan expressed concern that these new gases would eventually add to Earth’s greenhouse effect and cause our world to warm. (Because CFCs also erode Earth’s protective ozone layer, their use was mostly abolished in 1989 with the signing of the Montreal Protocol.)

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Climate change: How do we know?

This graph, based on the comparison of atmospheric samples contained in ice cores and more recent direct measurements, provides evidence that atmospheric CO₂ has increased since the Industrial Revolution. (Credit: Vostok ice core data/J.R. Petit et al.; NOAA Mauna Loa CO2 record.)

 

The Earth's climate has changed throughout history. Just in the last 650,000 years there have been seven cycles of glacial advance and retreat, with the abrupt end of the last ice age about 7,000 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives.

Scientific evidence for warming of the climate system is unequivocal.

- Intergovernmental Panel on Climate Change

The current warming trend is of particular significance because most of it is very likely human-induced and proceeding at a rate that is unprecedented in the past 1,300 years.¹
 
Earth-orbiting satellites and other technological advances have enabled scientists to see the big picture, collecting many different types of information about our planet and its climate on a global scale. This body of data, collected over many years, reveals the signals of a changing climate.

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The evidence for rapid climate change is compelling:

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  Republic of Maldives: Vulnerable to sea level rise

  Photograph by Shahee Ilyas  
  

  Malé, capital of Maldives  Wikipedia.org

  Sea level rise

  Global sea level rose about 17 centimeters (6.7 inches) in the last century. The rate in the last decade, however, is nearly double that of the last century.⁴

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  Global temperature rise

  All three major global surface temperature reconstructions show that Earth has warmed since 1880.⁵ Most of this warming has occurred since the 1970s, with the 20 warmest years having occurred since 1981 and with all 10 of the warmest years occurring in the past 12 years.⁶ Even though the 2000s witnessed a solar output decline resulting in an unusually deep solar minimum in 2007-2009, surface temperatures continue to increase.⁷

   

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  Warming oceans

  The oceans have absorbed much of this increased heat, with the top 700 meters (about 2,300 feet) of ocean showing warming of 0.302 degrees Fahrenheit since 1969.⁸

   

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  Flowing meltwater from the Greenland ice sheet

  Shrinking ice sheets

  The Greenland and Antarctic ice sheets have decreased in mass. Data from NASA's Gravity Recovery and Climate Experiment show Greenland lost 150 to 250 cubic kilometers (36 to 60 cubic miles) of ice per year between 2002 and 2006, while Antarctica lost about 152 cubic kilometers (36 cubic miles) of ice between 2002 and 2005.

  
  

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