The National Climate Assessment claims unambiguous warming globally and in the US since 1880.
They show a very detailed graph and map which expresses the claimed warming.
GLOBAL temps continue their cooling trend, rebounding off the 2015/16 Super El Niño – the strongest since accurate measurements began, caused by surface waters in the Pacific Ocean, west of Central America rising up to 3C warmer than usual.
THE latest UAH V6.0 February anomaly of +0.20 brings temperatures back to the levels they were at after the 1998 El Niño.
MEASURING GLOBAL TEMPERATURES – Satellites Vs Thermometers?
NASA’s MSU satellite measurement systems, generate the RSS and UAH datasets, which measure the average temperature of every cubic inch of the lower atmosphere, the exact place where global warming theory is meant to occur.
BEFORE 2016, UAH and RSS both tracked closely showing very little warming in their data sets which led to the identification and validation of “the pause” in global warming which has since become the subject of much research and debate in peer-reviewed scientific journals.
From the RSS website:
HOWEVER, by 2016, Carl Mears, who is the chief scientist for RSS (Remote Sensing Systems) and who has used the pejorative “denialist” in various correspondence, decided that “the pause” was not a good look for the global warming narrative so RSS was massively adjusted upwards, conveniently eliminating “the pause” in the RSS dataset.
Mears’ objectivity towards the business of global temperature data collection and reporting can be found in his commentary on his website:
MEARS then published a paper claiming that new and improved adjustments have “found” that missing warming.
Mears, C., and F. Wentz, 2016: Sensitivity of satellite-derived tropospheric
temperature trends to the diurnal cycle adjustment. J. Climate. doi:10.1175/JCLID-
15-0744.1, in press.
Differences between the old version and new version of RSS:
UAH is the satellite data set featured in this post and is jointly run by Dr. John R. Christy – Distinguished Professor of Atmospheric Science and Director of the Earth System Science Center at The University of Alabama in Huntsville. And Roy Spencer Ph.D. Principal Research Scientist at the University of Alabama in Huntsville.
Spencer commentary on the divergence between RSS and UAH post “adjustment”:
“We have a paper in peer review with extensive satellite dataset comparisons to many balloon datasets and reanalyses. These show that RSS diverges from these and from UAH, showing more warming than the other datasets between 1990 and 2002 – a key period with two older MSU sensors both of which showed signs of spurious warming not yet addressed by RSS. I suspect the next chapter in this saga is that the remaining radiosonde datasets that still do not show substantial warming will be the next to be “adjusted” upward.
The bottom line is that we still trust our methodology. But no satellite dataset is perfect, there are uncertainties in all of the adjustments, as well as legitimate differences of opinion regarding how they should be handled.
Also, as mentioned at the outset, both RSS and UAH lower tropospheric trends are considerably below the average trends from the climate models.
And that is the most important point to be made.”
THIS epic twitter conversation between NASA GISS’ chief climate commissar Gavin Schmidt and @7Kiwi captured an epic admission as to the spurious nature of the highly upwardly ‘adjusted’ NASA land-ocean temperature data set, that leads to the huge and widely recognised divergence between satellite observations, climate models and NASA’s GISS temp…
A translation (square brackets) of Gavin’s admissions just for fun . Though many truths in it…
NASA and NOAA’s preferred surface-based thermometers measure “different parts of the system [UHI affected parking lots, asphalt heat sinks, AC exhaust air vents], different signal to noise ratio [we bias toward warm stations], different structural uncertainty [we ‘homogenise’ the data set to cool the past and warm the present to fit the global warming narrative].” – NASA GISS Gavin Schmidt’s admission about the satellite record versus the surface temperature record
More info on NASA GISTEMP: Data.GISS: GISS Surface Temperature Analysis (GISTEMP)
IT’S not difficult to see why the NASA data set is the preferred go-to for global warming activists, mainstream media, the UN IPCC and politicians seeking to implement draconian climate policy on their citizenry…
“The Pause” is well and truly wiped from the record, with vengeance!
C/w UAH satellite global temp data:
VISUALISING NASA / NOAA DATA FRAUD aka “Adjustments”
NASA has doubled global warming since 2001:
NASA make up make up record temperatures in countries where they have no thermometer data. NOAA’s current data in Africa and much of the rest of the world is fake:
NASA has massively altered their US temperature data since 1999, to make a 1930-2000 cooling trend disappear:
SEE more extreme examples of NASA / NOAA temperature data fraud at Tony Heller’s superb resource: The Deplorable Climate Science Blog | “Science is the belief in the ignorance of the experts” – Richard Feynman
GOOD READ : Satellites / Thermometers
January 26, 2016 by Dr. Roy Spencer
The University of Alabama in Huntsville
The official global temperature numbers are in, and NOAA and NASA have decided that 2015 was the warmest year on record. Based mostly upon surface thermometers, the official pronouncement ignores the other two primary ways of measuring global air temperatures, satellites and radiosondes (weather balloons).
The fact that those ignored temperature datasets suggest little or no warming for about 18 years now, it is worth outlining the primary differences between these three measurement systems.
Three Ways to Measure Global Temperatures
The primary ways to monitor global average air temperatures are surface based thermometers (since the late 1800s), radiosondes (weather balloons, since about the 1950s), and satellites measuring microwave emissions (since 1979). Other technologies, such as GPS satellite based methods have limited record length and have not yet gained wide acceptance for accuracy.
While the thermometers measure near-surface temperature, the satellites and radiosondes measure the average temperature of a deep layer of the lower atmosphere. Based upon our understanding of how the atmosphere works, the deep layer temperatures are supposed to warm (and cool) somewhat more strongly than the surface temperatures. In other words, variations in global average temperature are expected to be magnified with height, say through the lowest 10 km of atmosphere. We indeed see this during warm El Nino years (like 2015) and cool La Nina years.
The satellite record is the shortest, and since most warming has occurred since the 1970s anyway we often talk about temperature trends since 1979 so that we can compare all three datasets over a common period.
Temperatures of the deep ocean, which I will not address in detail, have warmed by amounts so small — hundredths of a degree — that it is debatable whether they are accurate enough to be of much use. Sea surface temperatures, also indicating modest warming in recent decades, involve an entirely new set of problems, with rather sparse sampling by a mixture of bucket temperatures from many years ago, to newer ship engine intake temperatures, buoys, and since the early 1980s infrared satellite measurements.
How Much Warming?
Since 1979, it is generally accepted that the satellites and radiosondes measure 50% less of a warming trend than the surface thermometer data do, rather than 30-50% greater warming trend that theory predicts for warming aloft versus at the surface.
This is a substantial disagreement.
Why the Disagreement?
There are different possibilities for the disagreement:
1) Surface thermometer analyses are spuriously overestimating the true temperature trend
2) Satellites and radiosondes are spuriously underestimating the true temperature trend
3) All data are largely correct, and are telling us something new about how the climate system operates under long-term warming.
First let’s look at the fundamental basis for each measurement.
All Temperature Measurements are “Indirect”
Roughly speaking, “temperature” is a measure of the kinetic energy of motion of molecules in air.
Unfortunately, we do not have an easy way to directly measure that kinetic energy of motion.
Instead, many years ago, mercury-in-glass or alcohol-in-glass thermometers were commonly used, where the thermal expansion of a column of liquid in response to temperature was estimated by eye. These measurements have now largely been replaced with thermistors, which measure the resistance to the flow of electricity, which is also temperature-dependent.
Such measurements are just for the air immediately surrounding the thermometer, and as we all know, local sources of heat (a wall, pavement, air conditioning or heating equipment, etc.) can and do affect the measurements made by the thermometer. It has been demonstrated many times that urban locations have higher temperatures than rural locations, and such spurious heat influences are difficult to eliminate entirely, since we tend to place thermometers where people live.
Radiosondes also use a thermistor, which is usually checked against a separate thermometer just before weather balloon launch. As the weather balloon carries the thermistor up through the atmosphere, it is immune from ground-based sources of contamination, but it still has various errors due to sunlight heating and infrared cooling which are minimized through radiosonde enclosure design. Radiosondes are much fewer in number, generally making hundreds of point measurements around the world each day, rather than many thousands of measurements that thermometers make.
Satellite microwave radiometers are the fewest in number, only a dozen or so, but each one is transported by its own satellite to continuously measure virtually the entire earth each day. Each individual measurement represents the average temperature of a volume of the lower atmosphere about 50 km in diameter and about 10 km deep, which is about 25,000 cubic kilometers of air. About 20 of those measurements are made every second as the satellite travels and the instrument scans across the Earth.
The satellite measurement itself is “radiative”: the level of microwave emission by oxygen in the atmosphere is measured and compared to that from a warm calibration target on the satellite (whose temperature is monitored with several highly accurate platinum resistance thermometers), and a cold calibration view of the cosmic background radiation from space, assumed to be about 3 Kelvin (close to absolute zero temperature). A less sophisticated (infrared) radiation temperature measurement is made with the medical thermometer you place in your ear.
So, Which System is Better?
The satellites have the advantage of measuring virtually the whole Earth every day with the same instruments, which are then checked against each other. But since there are very small differences between the instruments, which can change slightly over time, adjustments must be made.
Thermometers have the advantage of being much greater in number, but with potentially large long-term spurious warming effects depending on how each thermometer’s local environment has changed with the addition of manmade objects and structures.
Virtually all thermometer measurements require adjustments of some sort, simply because with the exception of a few thermometer sites, there has not been a single, unaltered instrument measuring the same place for 30+ years without a change in its environment. When such rare thermometers were identified in a recent study of the U.S., it was found that by comparison the official U.S. warming trends were exaggerated by close to 60%. Thus, the current official NOAA adjustment procedures appear to force the good data to match the bad data, rather than the other way around. Whether such problem exist with other countries data remains to be seen.
Changes in radiosonde design and software have occurred over the years, making some adjustments necessary to the raw data.
For the satellites, orbital decay of the satellites requires an adjustment of the “lower tropospheric” (LT) temperatures, which is well understood and quite accurate, depending only upon geometry and the average rate of temperature decrease with altitude. But the orbital decay also causes the satellites to slowly drift in the time of day they observe. This “diurnal drift” adjustment is less certain. Significantly, very different procedures for this adjustment have led to almost identical results between the satellite datasets produced by UAH (The University of Alabama in Huntsville) and RSS (Remote Sensing Systems, Santa Rosa, California).
The fact that the satellites and radiosondes – two very different types of measurement system — tend to agree with each other gives us somewhat more confidence in their result that warming has been much less than predicted by climate models. But even the thermometers indicate less warming than the models, just with less of a discrepancy.
And this is probably the most important issue…that no matter which temperature monitoring method we use, the climate models that global warming policies are based upon have been, on average, warming faster than all of our temperature observation systems.
I do believe “global warming” has occurred, but (1) it is weaker than expected, based upon independent satellite and weather balloon measurements; (2) it has been overestimated with poorly adjusted surface-based thermometers; (3) it has a substantial natural component; and (4) it is likely to be more beneficial to life on Earth than harmful.
About the Author: Dr. Roy Spencer
Roy W. Spencer is a Principal Research Scientist at the University of Alabama in Huntsville. He received his Ph.D. in Meteorology from the University of Wisconsin in 1981. As Senior Scientist for Climate Studies at NASA’s Marshall Space Flight Center, Dr. Spencer previously directed research into the development and application of satellite passive microwave remote sensing techniques for measuring global temperature, water vapor, and precipitation. He is co-developer of the original satellite method for precision monitoring of global temperatures from Earth-orbiting satellites. Dr. Spencer also serves as U.S. Team Leader for the Advanced Microwave Scanning Radiometer for EOS (AMSR-E) flying on NASA’s Terra satellite. He has authored numerous research articles in scientific journals, and has provided congressional testimony several times on the subject of global warming.
“The Pause” related :
“Hottest Year Evah” Meme via Dataset related :
Climatism Top Posts :
Climate Science related :
Source info :
(Still waiting for that “big oil” cheque to arrive in the mail!)
Click this link for brief info…TQ, Jamie 🙂
AS the old saying goes “Sunlight is said to be the best of disinfectants“. One man who has been tireless and paid-less (sic) in the pursuit of exposing the blatant and unequivocal global temperature data fraud, executed by taxpayer funded government scientific agencies worldwide, has been Tony Heller aka Steve Goddard.
THERE are literally thousands upon thousands of mind-blowing examples of temperature data manipulation/fraud carried out in-plain-sight by climate activist agencies namely – NOAA, NASA, BoM, Met Office UK – who happen to be the literal gate-keepers of global temperature. They do this simply to make you believe that the climate is warming catastrophically thanks to your carbon dioxide (energy) emissions.
THE blink giff included in this post is really all one needs to know about how climate scientists literally “change the data to fit the theory” – a quote linked to Hungarian Marxist Georg Lukacs in his ‘Tactics and Ethics’ (1923) though often associated with Albert Einstein as a non-literal quip.
OTHER than driving the climate scare and maintaining taxpayer funding to the tune of $Trillions worldwide, hysterical claims of the “hottest year, month, day ever” tell us far more about
global warming climate change marketing than they do about actual ‘science’.
Via Tony Heller’s “The Deplorable Climate Science Blog“ :
The National Climate Assessment claims unambiguous warming globally and in the US since 1880.
They show a very detailed graph and map which expresses the claimed warming.
All that red looks pretty scary. Red is the color of fire, and it isn’t hard to convince some people that their carbon sins will lead to hell fire.
What they aren’t telling is that their graph and map are fake. They have no idea what global temperatures were in 1880, 1900, 1920, 1940, or in fact the present, because outside of the US there is very little verifiable data.
As late as 1940, there was almost no daily coverage of South America or Africa.
NOAA’s current data in Africa and much of the rest of the world is still fake. They make up record temperatures in countries where they have no thermometer data.
By their own admission, the ocean data is also fake.
date: Wed Apr 15 14:29:03 2009
from: Phil Jones <firstname.lastname@example.org> subject: Re: Fwd: Re: contribution to RealClimate.org
to: Thomas Crowley <email@example.com>
The issue Ray alludes to is that in addition to the issue
of many more drifters providing measurements over the last
5-10 years, the measurements are coming in from places where
we didn’t have much ship data in the past. For much of the SH between 40 and 60S the normals are mostly made up as there is very little ship data there.
The only location on Earth with good long term daily temperature data in the US.
Before NOAA tampers with their data, the US shows no warming over the past century.
The lack of US warming wrecks global warming theory, so NOAA and NASA tamper with their own data to create fake warming.
The frequency and coverage of hot weather has plummeted in the US over the past century. The US isn’t getting hotter – afternoons are getting cooler.
The US temperature data is tampered with by NOAA in a massive hockey stick.
Which is designed to bring the data precisely in line with CO2 theory.
NOAA knows perfectly well that the US is not warming.
US and global temperatures are constantly being tampered with to cool the past and warm the present.
US tampering :
Global tampering :
All of the claims in the National Climate Assessment about global warming are unsupportable junk science, made largely with fraudulent or imaginary data. Global warming is the biggest scam in science history. It has been thoroughly corrupted by tens of billions of dollars of government money – which fake climate scientists refuse to let go of.
The only thing global and unambiguous in the National Climate Assessment, is the level of junk science and fraud it represents.
NASA / NOAA Data Fraud Related :
Surprise, surprise again…
“Press officers work with scientists within agencies like the National Oceanic Administration (NOAA) and NASA and are responsible for crafting misleading press releases on climate, he added.”
by Chris White
A former member of the Obama administration claims Washington D.C. often uses “misleading” news releases about climate data to influence public opinion.
Former Energy Department Undersecretary Steven Koonin told The Wall Street Journal Monday that bureaucrats within former President Barack Obama’s administration spun scientific data to manipulate public opinion.
“What you saw coming out of the press releases about climate data, climate analysis, was, I’d say, misleading, sometimes just wrong,” Koonin said, referring to elements within the Obama administration he said were responsible for manipulating climate data.
He pointed to a National Climate Assessment in 2014 showing hurricane activity has increased from 1980 as an illustration of how federal agencies fudged climate data. Koonin said the NCA’s assessment was technically incorrect.
“What they forgot to tell you, and you don’t know until you read all the way into the fine print is that it actually decreased in…
View original post 244 more words
Australia’s warmist agency BoM (Bureau of meteorology) removed the very warm temps of the late 1800’s and begins Australia’s temp record at 1910. This correlates with warm Cape Town (Southern Hemisphere) temp data, pre-1909, removed by NASA to maximise upward trend in temps, promoting the “man-made” global warming narrative.
BoM also smoothed out (removed) 1940-1970’s cooling in many regions of AUS, as seen in the Cape Town record, to create an overall warming trend.
“Man-Made” global warming, by pen and *not* CO2, indeed.
Playing around with my hometown data, I was horrified when I found what NASA had done to it. Even producing GISTEMP Ver 2 was counterfactual.
Guest essay by Philip Lloyd
The raw data that is fed to NASA in order to develop the global temperature series is subjected to “homogenization” to ensure that it does not suffer from such things as the changes in the method of measuring the mean temperature, or changes in readings because of changes in location. However, while the process is supposed to be supported by metadata – i.e. the homogenizers are supposed to provide the basis for any modification of the raw data.
For example, the raw data for my home city, Cape Town, goes back to 1880:
The warmest years were in the 1930’s, as they were in many other parts of the globe. There was then a fairly steep decline into the…
View original post 191 more words
CARL DE SOUZA/AFP/Getty Images
Brietbart’s James Delingpole confirming what sceptics have been observing with disgust for years and what thankfully the world is now becoming increasingly clear about – that NASA, under the directorship of climate change activist Gavin Schmidt and before him James Hansen (pictured) arrested 4 times for climate activism, is scandalously tampering with one of the four major global temperature data sets – GISS.
This is the same data set used by much of the climate science cabal, agenda-driven politicians and the alarmist mainstream media to claim the “Hottest Year Ever” meme.
24 Nov 2015
Professor Dr. Friedrich Karl Ewert is a retired geologist and data computation expert. He has painstakingly examined and tabulated all NASA GISS’s temperature data series, taken from 1153 stations and going back to 1881. His conclusion: that if you look at the raw data, as opposed to NASA’s revisions, you’ll find that since 1940 the planet has been cooling, not warming.
According to Günter Ederer, the German journalist who has reported on Ewert’s findings:
From the publicly available data, Ewert made an unbelievable discovery: Between the years 2010 and 2012 the data measured since 1881 were altered so that they showed a significant warming, especially after 1950. […] A comparison of the data from 2010 with the data of 2012 shows that NASA-GISS had altered its own datasets so that especially after WWII a clear warming appears – although it never existed.
Apart from Australia, the planet has in fact been on a cooling trend:
Using the NASA data from 2010 the surface temperature globally from 1940 until today has fallen by 1.110°C, and since 2000 it has fallen 0.4223°C […]. The cooling has hit every continent except for Australia, which warmed by 0.6339°C since 2000. The figures for Europe: From 1940 to 2010, using the data from 2010, there was a cooling of 0.5465°C and a cooling of 0.3739°C since 2000.
But the activist scientists at NASA GISS – initially led by James Hansen (pictured above), later by Gavin Schmidt – wanted the records they are in charge of maintaining to show warming not cooling, so they began systematically adjusting the data for various spurious reasons using ten different methods.
The most commonly used ones were:
• Reducing the annual mean in the early phase.
• Reducing the high values in the first warming phase.
• Increasing individual values during the second warming phase.
• Suppression of the second cooling phase starting in 1995.
• Shortening the early decades of the datasets.
• With the long-term datasets, even the first century was shortened.
Ewert’s findings echo that of US meteorologists Joseph D’Aleo and Anthony Watts who examined 6,000 NASA weather stations and found a host of irregularities both with the way they were sited and how the raw data had been adjusted to reflect such influences as the Urban Heat Island effect.
Britain’s Paul Homewood is also on NASA GISS’s case. Here he shows the shocking extent of the adjustments they have made to a temperature record in Brazil which has been altered so that a cooling trend becomes a warming trend.
Unadjusted temperature record: shows cooling trend.
Adjusted temperature record: shows warming trend.
See also :
The controversial global warming aka climate change “hiatus/pause”, lingering like a bad smell to climate alarmists for nearly two decades, is back in play with a record drop in global temperatures since the middle of the year.
Temperatures are heading south rapidly. The latest huge drop despite record and increasing CO2 emissions.
Must be nearing revision time for the theory of Catastrophic Global Warming with regards to CO2-sensitivity?
Via GWPF :
(Bolds added by Climatism)
The news comes amid mounting evidence that the recent run of world record high temperatures is about to end.
The fall, revealed by Nasa satellite measurements of the lower atmosphere, has been caused by the end of El Nino – the warming of surface waters in a vast area of the Pacific west of Central America.
Some scientists, including Dr Gavin Schmidt, head of Nasa’s climate division, have claimed that the recent highs were mainly the result of long-term global warming.
Others have argued that the records were caused by El Nino, a complex natural phenomenon that takes place every few years, and has nothing to do with greenhouse gas emissions by humans.
The new fall in temperatures suggests they were right.
Big El Ninos always have an immense impact on world weather, triggering higher than normal temperatures over huge swathes of the world. The 2015-16 El Nino was probably the strongest since accurate measurements began, with the water up to 3C warmer than usual.
It has now been replaced by a La Nina event – when the water in the same Pacific region turns colder than normal.
This also has worldwide impacts, driving temperatures down rather than up.
The satellite measurements over land respond quickly to El Nino and La Nina. Temperatures over the sea are also falling, but not as fast, because the sea retains heat for longer.
This means it is possible that by some yardsticks, 2016 will be declared as hot as 2015 or even slightly hotter – because El Nino did not vanish until the middle of the year.
But it is almost certain that next year, large falls will also be measured over the oceans, and by weather station thermometers on the surface of the planet – exactly as happened after the end of the last very strong El Nino in 1998. If so, some experts will be forced to eat their words.
Last year, Dr Schmidt said 2015 would have been a record hot year even without El Nino.
‘The reason why this is such a warm record year is because of the long-term underlying trend, the cumulative effect of the long-term warming trend of our Earth,’ he said. This was ‘mainly caused’ by the emission of greenhouse gases by humans.
Dr Schmidt also denied that there was any ‘pause’ or ‘hiatus’ in global warming between the 1998 and 2015 El Ninos.
But on its website home page yesterday, Nasa featured a new study which said there was a hiatus in global warming before the recent El Nino, and discussed why this was so. Last night Dr Schmidt had not returned a request for comment.
However, both his own position, and his Nasa division, may be in jeopardy. US President-elect Donald Trump is an avowed climate change sceptic, who once claimed it was a hoax invented by China.
Last week, Mr Trump’s science adviser Bob Walker said he was likely to axe Nasa’s $1.9 billion (about £1.4 billion) climate research budget.
Other experts have also disputed Dr Schmidt’s claims. Professor Judith Curry, of the Georgia Institute of Technology, and president of the Climate Forecast Applications Network, said yesterday: ‘I disagree with Gavin. The record warm years of 2015 and 2016 were primarily caused by the super El Nino.’
The slowdown in warming was, she added, real, and all the evidence suggested that since 1998, the rate of global warming has been much slower than predicted by computer models – about 1C per century.
David Whitehouse, a scientist who works with Lord Lawson’s sceptic Global Warming Policy Foundation, said the massive fall in temperatures following the end of El Nino meant the warming hiatus or slowdown may be coming back.
‘According to the satellites, the late 2016 temperatures are returning to the levels they were at after the 1998 El Nino.
The data clearly shows El Nino for what it was – a short-term weather event,’ he said.
Further analysis from Paul Homewood’s excellent site Not A Lot Of People Know That :
Rose uses satellite data for his graph, but the NOAA surface data for land also gives a stark picture:
Even NOAA admit that October was by far the coldest over land since 2001, despite the fact that are we still awaiting the start of La Nina.
It is also becoming increasingly apparent that this year’s El Nino event is the strongest one at least for the last 60 years, more powerful than 1983/3 and 1997/8.
Whilst it has not peaked quite as high, it has been much more longer lasting.
“Time To Drain The (Climate Change) Swamp.”
Defund Gavin Schmidt/NASA’s $1Billion/year taxpayer funded gravy train.
Put the dragnet through Tom Karl’s NOAA as well.
Disgraces to science.
H/t to Bill Illis and Tony Heller
As the graphs show, global warming is indeed man made. It is achieved by adjustments producing a warming trend in station records where no such trend existed.
A similar pattern is found and analyzed in my study of the highest quality US stations Temperature Data Review Project–My Submission
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