Timeline of Earth's Recent Average Temperatures
- Thread starter cancel2 2022
- Start date
cancel2 2022
Canceled
Here is a graphic that shows the logarithmic heating effect due to CO2, note that the first 20ppm has the most influence.
What that graph demonstrates is the logarithmic heating effect of carbon dioxide. Half of the heating is from the first 20 ppm. By the time we get to the atmospheric concentration in 2017 of 406 ppm, each additional 100 ppm only adds 0.1°C. Everyone knows this to be true. How the global warmers get the heating they need for their belief system is by saying that the little bit of warming from carbon dioxide will cause more water vapor to be held in the atmosphere. Water vapour is also a greenhouse gas which will cause more warming which cause more water vapor and so on ad infinitum, or until they get a graph that can scare them.
https://wattsupwiththat.com/2017/01/17/xkcds-cri-de-coeur/
What that graph demonstrates is the logarithmic heating effect of carbon dioxide. Half of the heating is from the first 20 ppm. By the time we get to the atmospheric concentration in 2017 of 406 ppm, each additional 100 ppm only adds 0.1°C. Everyone knows this to be true. How the global warmers get the heating they need for their belief system is by saying that the little bit of warming from carbon dioxide will cause more water vapor to be held in the atmosphere. Water vapour is also a greenhouse gas which will cause more warming which cause more water vapor and so on ad infinitum, or until they get a graph that can scare them.
https://wattsupwiththat.com/2017/01/17/xkcds-cri-de-coeur/
cancel2 2022
Canceled
Jarod is always waffling on about climate deniers, so maybe he could give us all the benefit of his wisdom?
Bigdog
Harris - make America a 3rd world shithole
"Less than an hour after President Trump took the oath of office on Friday, the White House’s webpage on climate change disappeared, the latest sign that the new administration will divert resources – and attention – from the issue."
http://thehill.com/homenews/adminis...limate-change-webpage-disappears-after-trumps
http://thehill.com/homenews/adminis...limate-change-webpage-disappears-after-trumps
Lightbringer
Loves Me Some Souls
But is what you just said is true doesn't CO2 also release energy?
Can't release what it doesn't capture. Much less effect backscatter.
Lightbringer
Loves Me Some Souls
So we don't have a CO2 problem? Cool.
http://climate.nasa.gov/evidence/
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.
The heat-trapping nature of carbon dioxide and other gases was demonstrated in the mid-19th century.2 Their ability to affect the transfer of infrared energy through the atmosphere is the scientific basis of many instruments flown by NASA. There is no question that increased levels of greenhouse gases must cause the Earth to warm in response.
Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that the Earth’s climate responds to changes in greenhouse gas levels. They also show that in the past, large changes in climate have happened very quickly, geologically-speaking: in tens of years, not in millions or even thousands.3
The evidence for rapid climate change is compelling:
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
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
Image: Republic of Maldives: Vulnerable to sea level rise
+ MORE
Global temperature rise
All three major global surface temperature reconstructions show that Earth has warmed since 1880
All three major global surface temperature reconstructions show that Earth has warmed since 1880.5 Most of the warming occurred in the past 35 years, with 15 of the 16 warmest years on record occurring since 2001. The year 2015 was the first time the global average temperatures were 1 degree Celsius or more above the 1880-1899 average.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
+ MORE
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
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
+ MORE
Shrinking ice sheets
The Greenland and Antarctic ice sheets have decreased in mass
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.
Image: Flowing meltwater from the Greenland ice sheet
+ MORE
Declining Arctic sea ice
Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades
Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades.9
Image: Visualization of the 2007 Arctic sea ice minimum
+ MORE
Glacial retreat
Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa.
Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa.10
Image: The disappearing snowcap of Mount Kilimanjaro, from space.
+ MORE
Extreme events
Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa.
The number of record high temperature events in the United States has been increasing, while the number of record low temperature events has been decreasing, since 1950. The U.S. has also witnessed increasing numbers of intense rainfall events.11
+ MORE
Ocean acidification
Since the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30 percent
Since the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30 percent.12,13 This increase is the result of humans emitting more carbon dioxide into the atmosphere and hence more being absorbed into the oceans. The amount of carbon dioxide absorbed by the upper layer of the oceans is increasing by about 2 billion tons per year.14,15
+ MORE
Decreased snow cover
Satellite observations reveal that the amount of spring snow cover in the Northern Hemisphere has decreased over the past five decades and that the snow is melting earlier
Satellite observations reveal that the amount of spring snow cover in the Northern Hemisphere has decreased over the past five decades and that the snow is melting earlier.16
+ MORE
References
IPCC Fourth Assessment Report, Summary for Policymakers, p. 5
B.D. Santer et.al., “A search for human influences on the thermal structure of the atmosphere,” Nature vol 382, 4 July 1996, 39-46
Gabriele C. Hegerl, “Detecting Greenhouse-Gas-Induced Climate Change with an Optimal Fingerprint Method,” Journal of Climate, v. 9, October 1996, 2281-2306
V. Ramaswamy et.al., “Anthropogenic and Natural Influences in the Evolution of Lower Stratospheric Cooling,” Science 311 (24 February 2006), 1138-1141
B.D. Santer et.al., “Contributions of Anthropogenic and Natural Forcing to Recent Tropopause Height Changes,” Science vol. 301 (25 July 2003), 479-483.
In the 1860s, physicist John Tyndall recognized the Earth's natural greenhouse effect and suggested that slight changes in the atmospheric composition could bring about climatic variations. In 1896, a seminal paper by Swedish scientist Svante Arrhenius first predicted that changes in the levels of carbon dioxide in the atmosphere could substantially alter the surface temperature through the greenhouse effect.
National Research Council (NRC), 2006. Surface Temperature Reconstructions For the Last 2,000 Years. National Academy Press, Washington, DC.
Church, J. A. and N.J. White (2006), A 20th century acceleration in global sea level rise, Geophysical Research Letters, 33, L01602, doi:10.1029/2005GL024826.
The global sea level estimate described in this work can be downloaded from the CSIRO website.
https://www.ncdc.noaa.gov/indicators/
http://www.cru.uea.ac.uk/cru/data/temperature
http://data.giss.nasa.gov/gistemp
http://www.giss.nasa.gov/research/news/20160120/
T.C. Peterson et.al., "State of the Climate in 2008," Special Supplement to the Bulletin of the American Meteorological Society, v. 90, no. 8, August 2009, pp. S17-S18.
I. Allison et.al., The Copenhagen Diagnosis: Updating the World on the Latest Climate Science, UNSW Climate Change Research Center, Sydney, Australia, 2009, p. 11
http://www.giss.nasa.gov/research/news/20100121/
http://science.nasa.gov/headlines/y2009/ 01apr_deepsolarminimum.htm
Levitus, et al, "Global ocean heat content 1955–2008 in light of recently revealed instrumentation problems," Geophys. Res. Lett. 36, L07608 (2009).
L. Polyak, et.al., “History of Sea Ice in the Arctic,” in Past Climate Variability and Change in the Arctic and at High Latitudes, U.S. Geological Survey, Climate Change Science Program Synthesis and Assessment Product 1.2, January 2009, chapter 7
R. Kwok and D. A. Rothrock, “Decline in Arctic sea ice thickness from submarine and ICESAT records: 1958-2008,” Geophysical Research Letters, v. 36, paper no. L15501, 2009
http://nsidc.org/sotc/sea_ice.html
National Snow and Ice Data Center
World Glacier Monitoring Service
http://lwf.ncdc.noaa.gov/extremes/cei.html
http://www.pmel.noaa.gov/co2/story/What+is+Ocean+Acidification%3F
http://www.pmel.noaa.gov/co2/story/Ocean+Acidification
C. L. Sabine et.al., “The Oceanic Sink for Anthropogenic CO2,” Science vol. 305 (16 July 2004), 367-371
Copenhagen Diagnosis, p. 36.
National Snow and Ice Data Center
C. Derksen and R. Brown, "Spring snow cover extent reductions in the 2008-2012 period exceeding climate model projections," GRL, 39:L19504
http://nsidc.org/cryosphere/sotc/snow_extent.html
Rutgers University Global Snow Lab, Data History Accessed August 29, 2011.
Scientific Consensus
Ninety-seven percent of climate scientists agree that climate-warming trends over the past century are very likely due to human activities, and most of the leading scientific organizations worldwide have issued public statements endorsing this position.
Click here for a partial list of these public statements and related resources.
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.
The heat-trapping nature of carbon dioxide and other gases was demonstrated in the mid-19th century.2 Their ability to affect the transfer of infrared energy through the atmosphere is the scientific basis of many instruments flown by NASA. There is no question that increased levels of greenhouse gases must cause the Earth to warm in response.
Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that the Earth’s climate responds to changes in greenhouse gas levels. They also show that in the past, large changes in climate have happened very quickly, geologically-speaking: in tens of years, not in millions or even thousands.3
The evidence for rapid climate change is compelling:
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
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
Image: Republic of Maldives: Vulnerable to sea level rise
+ MORE
Global temperature rise
All three major global surface temperature reconstructions show that Earth has warmed since 1880
All three major global surface temperature reconstructions show that Earth has warmed since 1880.5 Most of the warming occurred in the past 35 years, with 15 of the 16 warmest years on record occurring since 2001. The year 2015 was the first time the global average temperatures were 1 degree Celsius or more above the 1880-1899 average.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
+ MORE
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
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
+ MORE
Shrinking ice sheets
The Greenland and Antarctic ice sheets have decreased in mass
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.
Image: Flowing meltwater from the Greenland ice sheet
+ MORE
Declining Arctic sea ice
Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades
Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades.9
Image: Visualization of the 2007 Arctic sea ice minimum
+ MORE
Glacial retreat
Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa.
Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa.10
Image: The disappearing snowcap of Mount Kilimanjaro, from space.
+ MORE
Extreme events
Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa.
The number of record high temperature events in the United States has been increasing, while the number of record low temperature events has been decreasing, since 1950. The U.S. has also witnessed increasing numbers of intense rainfall events.11
+ MORE
Ocean acidification
Since the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30 percent
Since the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30 percent.12,13 This increase is the result of humans emitting more carbon dioxide into the atmosphere and hence more being absorbed into the oceans. The amount of carbon dioxide absorbed by the upper layer of the oceans is increasing by about 2 billion tons per year.14,15
+ MORE
Decreased snow cover
Satellite observations reveal that the amount of spring snow cover in the Northern Hemisphere has decreased over the past five decades and that the snow is melting earlier
Satellite observations reveal that the amount of spring snow cover in the Northern Hemisphere has decreased over the past five decades and that the snow is melting earlier.16
+ MORE
References
IPCC Fourth Assessment Report, Summary for Policymakers, p. 5
B.D. Santer et.al., “A search for human influences on the thermal structure of the atmosphere,” Nature vol 382, 4 July 1996, 39-46
Gabriele C. Hegerl, “Detecting Greenhouse-Gas-Induced Climate Change with an Optimal Fingerprint Method,” Journal of Climate, v. 9, October 1996, 2281-2306
V. Ramaswamy et.al., “Anthropogenic and Natural Influences in the Evolution of Lower Stratospheric Cooling,” Science 311 (24 February 2006), 1138-1141
B.D. Santer et.al., “Contributions of Anthropogenic and Natural Forcing to Recent Tropopause Height Changes,” Science vol. 301 (25 July 2003), 479-483.
In the 1860s, physicist John Tyndall recognized the Earth's natural greenhouse effect and suggested that slight changes in the atmospheric composition could bring about climatic variations. In 1896, a seminal paper by Swedish scientist Svante Arrhenius first predicted that changes in the levels of carbon dioxide in the atmosphere could substantially alter the surface temperature through the greenhouse effect.
National Research Council (NRC), 2006. Surface Temperature Reconstructions For the Last 2,000 Years. National Academy Press, Washington, DC.
Church, J. A. and N.J. White (2006), A 20th century acceleration in global sea level rise, Geophysical Research Letters, 33, L01602, doi:10.1029/2005GL024826.
The global sea level estimate described in this work can be downloaded from the CSIRO website.
https://www.ncdc.noaa.gov/indicators/
http://www.cru.uea.ac.uk/cru/data/temperature
http://data.giss.nasa.gov/gistemp
http://www.giss.nasa.gov/research/news/20160120/
T.C. Peterson et.al., "State of the Climate in 2008," Special Supplement to the Bulletin of the American Meteorological Society, v. 90, no. 8, August 2009, pp. S17-S18.
I. Allison et.al., The Copenhagen Diagnosis: Updating the World on the Latest Climate Science, UNSW Climate Change Research Center, Sydney, Australia, 2009, p. 11
http://www.giss.nasa.gov/research/news/20100121/
http://science.nasa.gov/headlines/y2009/ 01apr_deepsolarminimum.htm
Levitus, et al, "Global ocean heat content 1955–2008 in light of recently revealed instrumentation problems," Geophys. Res. Lett. 36, L07608 (2009).
L. Polyak, et.al., “History of Sea Ice in the Arctic,” in Past Climate Variability and Change in the Arctic and at High Latitudes, U.S. Geological Survey, Climate Change Science Program Synthesis and Assessment Product 1.2, January 2009, chapter 7
R. Kwok and D. A. Rothrock, “Decline in Arctic sea ice thickness from submarine and ICESAT records: 1958-2008,” Geophysical Research Letters, v. 36, paper no. L15501, 2009
http://nsidc.org/sotc/sea_ice.html
National Snow and Ice Data Center
World Glacier Monitoring Service
http://lwf.ncdc.noaa.gov/extremes/cei.html
http://www.pmel.noaa.gov/co2/story/What+is+Ocean+Acidification%3F
http://www.pmel.noaa.gov/co2/story/Ocean+Acidification
C. L. Sabine et.al., “The Oceanic Sink for Anthropogenic CO2,” Science vol. 305 (16 July 2004), 367-371
Copenhagen Diagnosis, p. 36.
National Snow and Ice Data Center
C. Derksen and R. Brown, "Spring snow cover extent reductions in the 2008-2012 period exceeding climate model projections," GRL, 39:L19504
http://nsidc.org/cryosphere/sotc/snow_extent.html
Rutgers University Global Snow Lab, Data History Accessed August 29, 2011.
Scientific Consensus
Ninety-seven percent of climate scientists agree that climate-warming trends over the past century are very likely due to human activities, and most of the leading scientific organizations worldwide have issued public statements endorsing this position.
Click here for a partial list of these public statements and related resources.
http://corporate.exxonmobil.com/en/current-issues/climate-policy/climate-perspectives/our-position
When your masters admit it, you can stop your slavish devotion to denial, stupid Republicans.
When your masters admit it, you can stop your slavish devotion to denial, stupid Republicans.
The_Trump_Effect
Verified User
You missed snowball Earth when the entire Earth was frozen solid. Isn't climate change a great thing since it ended that?
cancel2 2022
Canceled
Not strictly true, yes water vapour is the most profound in its climate forcing effects but several other gasses including CO2, NOx and CH4 have their effect as well.
The_Trump_Effect
Verified User
In other words by your lack of a comeback you admit that I am right and you have no clue, and in fact can't respond........................
LOL, another genius washes the drool off of their shirt
LOL, another genius washes the drool off of their shirt
The_Trump_Effect
Verified User
Actually no one knows what drives the climate long term, all we do know is that the climate has been changing for 5 billion more years than there have been humans on the Earth. So go jump up and down and scream....................I am going to burn some tires
"The energy challenge and climate change
Today’s challenge is to manage and meet growing worldwide demand for energy while addressing climate change and other environmental and social issues"
British petroleum
When your masters admit it, you can end your slavish devotion to denial, stupid Republicans.
Today’s challenge is to manage and meet growing worldwide demand for energy while addressing climate change and other environmental and social issues"
British petroleum
When your masters admit it, you can end your slavish devotion to denial, stupid Republicans.
"climate change overview
Chevron shares the concerns of governments and the public about climate change risks and recognizes that the use of fossil fuels to meet the world’s energy needs is a contributor to rising greenhouse gases (GHGs) in the earth’s atmosphere. GHGs contribute to an increase in global temperatures. We believe that taking prudent, practical and cost effective action to address climate change risks is the right thing to do. Mitigation of GHG emissions, adaptation to climate change and continuation of scientific and technological research should all be considered."
Chevron
Chevron shares the concerns of governments and the public about climate change risks and recognizes that the use of fossil fuels to meet the world’s energy needs is a contributor to rising greenhouse gases (GHGs) in the earth’s atmosphere. GHGs contribute to an increase in global temperatures. We believe that taking prudent, practical and cost effective action to address climate change risks is the right thing to do. Mitigation of GHG emissions, adaptation to climate change and continuation of scientific and technological research should all be considered."
Chevron
Lightbringer
Loves Me Some Souls
Hmmm, knowing what you know why do you think they might release that statement?
cancel2 2022
Canceled
The ECS Equilibrium Climate Sensitivity value for a doubling of CO2 concentration is widely agreed to be of the order of 1.2c. This is straight forward physics and is textbook stuff. Climate alarmists cannot scare anybody with a 1.2c rise in the 300 years between 1780 and 2080, when atmospheric CO2 reaches 560ppm from the 280ppm level at the start of the Industrial Revolution. Of course this is unlikely to happen anyway as 4th gen nuclear will be well and truly established by then. So to really scare people they have conjured up all manner of positive feedbacks to ramp up temperatures to 3c and beyond. Bear in mind that there is absolutely no empirical evidence to support this and these feedbacks only exist in climate models.
Actually, you are a moron. You are not a climate scientist. Anyone who substitutes their uniformed opinion for the overwhelming consensus opinion of experts in diverse scientific disciplines which each coalesce towards the unified judgment that climate change is real, anthropogenic and deleterious, is a moron. This is not a subject matter susceptible to lay opinion. Prove your credentials or fall in line, rube.