It is not a matter of degree.Do 97% agree on how much warming there has been?
It is a matter of degrees that are rising. That is the 97% consensus.
It is not a matter of degree.Do 97% agree on how much warming there has been?
This sound like it could be right. 1 degree c per centuryThe planet's average surface temperature has risen about 1.62 degrees Fahrenheit (0.9 degrees Celsius) since the late 19th century,
This is the theory. However proving this empirically is actually quite difficulta change driven largely by increased carbon dioxide and other human-made emissions into the atmosphere.
why was 2017 & 2018 not warmer than 2016?4 Most of the warming occurred in the past 35 years, with the five warmest years on record taking place since 2010. Not only was 2016 the warmest year on record, but eight of the 12 months that make up the year — from January through September, with the exception of June — were the warmest on record for those respective months.
This I question as accurately mapping the temperature of the oceans is extremely problematic. The oceans are hugeThe oceans have absorbed much of this increased heat, with the top 700 meters (about 2,300 feet) of ocean showing warming of more than 0.4 degrees Fahrenheit since 1969.
Ice does tend to melt after an ice ageThe Greenland and Antarctic ice sheets have decreased in mass. Data from NASA's Gravity Recovery and Climate Experiment show Greenland lost an average of 286 billion tons of ice per year between 1993 and 2016, while Antarctica lost about 127 billion tons of ice per year during the same time period. The rate of Antarctica ice mass loss has tripled in the last decade.
Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa.
Ice does tend to melt after an ice ageSatellite 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.
How many millimeters per year? Head for the hills !!!!Global sea level rose about 8 inches in the last century. The rate in the last two decades, however, is nearly double that of the last century and is accelerating slightly every year.
In the summerBoth the extent and thickness of Arctic sea ice has declined rapidly over the last several decades.
record temperatures How odd? The record is less than 200 years old. records will continue to be madeThe 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.
Careful with this claimSince the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30 percent.
The amount depends on who is calculating the carbon balance13,14 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.
97% of scientists agree on all of this?The planet's average surface temperature has risen about 1.62 degrees Fahrenheit (0.9 degrees Celsius) since the late 19th century, a change driven largely by increased carbon dioxide and other human-made emissions into the atmosphere.4 Most of the warming occurred in the past 35 years, with the five warmest years on record taking place since 2010. Not only was 2016 the warmest year on record, but eight of the 12 months that make up the year — from January through September, with the exception of June — were the warmest on record for those respective months.
The oceans have absorbed much of this increased heat, with the top 700 meters (about 2,300 feet) of ocean showing warming of more than 0.4 degrees Fahrenheit since 1969.
The Greenland and Antarctic ice sheets have decreased in mass. Data from NASA's Gravity Recovery and Climate Experiment show Greenland lost an average of 286 billion tons of ice per year between 1993 and 2016, while Antarctica lost about 127 billion tons of ice per year during the same time period. The rate of Antarctica ice mass loss has tripled in the last decade.
Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa.
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.
Global sea level rose about 8 inches in the last century. The rate in the last two decades, however, is nearly double that of the last century and is accelerating slightly every year.
Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades.
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.
Since the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30 percent.13,14 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.
absolutely not97% of scientists agree on all of this?
Only 3% say there's no warming like the OP claimed. That's pretty significant....
Do 97% agree on how much warming there has been?
Where did you come up with this bullshit?absolutely not
what they might agree upon is there has been some warming
a smaller number will agree humans are contributing to this warming
a far smaller number agree that it is dangerous
...
None of which contradicts what I statedWhere did you come up with this bullshit?
Here's a quick summary of the studies on support in the scientific community.
https://en.wikipedia.org/wiki/Surveys_of_scientists'_views_on_climate_change
Almost all agree there is warming.
Depending on the poll, between 66 and 97% of the scientific community says human impact contributes at least half the warming.
Up to 25% believe humans are having an impact but that impact represents less than half the warming.
1 or 2% believe humans are not having an impact and a similar claim there is no warming.
as best I can tell The source for the 97% was the clown John CookThe purpose of the Petition Project is to demonstrate that the claim of “settled science” and an overwhelming “consensus” in favor of the hypothesis of human-caused global warming and consequent climatological damage is wrong. No such consensus or settled science exists. As indicated by the petition text and signatory list, a very large number of American scientists reject this hypothesis.
Publicists at the United Nations, Mr. Al Gore, and their supporters frequently claim that only a few “skeptics” remain – skeptics who are still unconvinced about the existence of a catastrophic human-caused global warming emergency.
It is evident that 31,487 Americans with university degrees in science – including 9,029 PhDs, are not "a few." Moreover, from the clear and strong petition statement that they have signed, it is evident that these 31,487 American scientists are not “skeptics.”
These scientists are instead convinced that the human-caused global warming hypothesis is without scientific validity and that government action on the basis of this hypothesis would unnecessarily and counterproductively damage both human prosperity and the natural environment of the Earth.
Mr Cook committed a huge fraud. If you wrote a paper on climate you were counted in his 97 % regardless of your conclusionSkeptical Science conspiracy theorist John Cook runs another survey trying to prove that false "97% of climate scientists believe in global warming" meme
the planet has a long history (billions of years) of warming and cooling with lots of up and down cycles within cyclesOnly 3% say there's no warming like the OP claimed. That's pretty significant.
Medieval warm period was a local event, not global.the planet has a long history (billions of years) of warming and cooling with lots of up and down cycles within cycles
we are still coming out of an ice age so some warming is to be expected
the medieval warm period was warmer than the present, the little age which followed it was colder than the present
the 1970s were colder than the 1930s
Again facts settle science not opinion polls
Oh you are backMedieval warm period was a local event, not global.
Get your facts straight.
The planet has never been this warm in the history of humanity before and hasn't seen this high CO2 since the last time there was massive polar melts.
Indeed it wasnt (important parts in red): https://en.wikipedia.org/wiki/Medieval_Warm_PeriodThe medieval warm period was not an local event
The Medieval Warm Period (MWP) also known as the Medieval Climate Optimum, or Medieval Climatic Anomaly was a time of warm climate in the North Atlantic region lasting from c. 950 to c. 1250.
It was likely related to warming elsewhere while some other regions were colder, such as the tropical Pacific. Average global mean temperatures have been calculated to be similar to early-mid 20th century warming.
Possible causes of the Medieval Warm Period include increased solar activity, decreased volcanic activity, and changes to ocean circulation
Start with reading the wiki page on the period.Oh you are back
That was a short little break forus
The medieval warm period was not an local event
The models of imminent doom have missed their predictions by a lot
Dont bother with your silly little graph- Nobody trusts you
From the wiki page you quoted but didn't understand:Indeed it wasnt (important parts in red): https://en.wikipedia.org/wiki/Medieval_Warm_Period
Given accurate measuring devices are less than 150 years old and 2/3 of the globe is covered in water, that’s a bold statement.Medieval warm period was a local event, not global.
Get your facts straight.
The planet has never been this warm in the history of humanity before and hasn't seen this high CO2 since the last time there was massive polar melts.
What reality do you live in? Since when is well over 66% of scientists a "far smaller number"?None of which contradicts what I stated ...
No shit.the planet has a long history (billions of years)...
Here.Given accurate measuring devices are less than 150 years old and 2/3 of the globe is covered in water, that’s a bold statement.
https://www.theguardian.com/science...ree-fossils-indicate-impact-of-climate-changeLast time CO2 levels were this high, there were trees at the South Pole
Wiki?Start with reading the wiki page on the period.
https://en.wikipedia.org/wiki/Medieval_Warm_Period
The same Gavin Schmidt who refuses to debate any real scientists ?As for the graph, I don't care if you trust me.
This chart comes from Gavin Schmidt, the director of NASA's GISS program.
https://www.giss.nasa.gov/staff/gschmidt/
https://twitter.com/ClimateOfGavin?ref_src=twsrc^google|twcamp^serp|twgr^author
You just got banned for two days for insulting & you call me a science denier first chance you get?Its the most current and the most legit chart around.
The fact that you refuse to accept him as legit just cement's your 'science denier' title.
You don't get more legit then the head of NASA's climate department.
The last time I looked 66% is a far smaller number that 97%What reality do you live in? Since when is well over 66% of scientists a "far smaller number"?