NO Australian Under The Age Of 40 Has Experienced Any Global Warming
Posted: June 20, 2018 Filed under: Australia, Carbon Dioxide, Climatism, CO2, Empirical Evidence, Fact Check, Global Temperature, Global Warming Stasis, Satellite Data, The Pause, UAH, UHI | Tags: "The Pause", Australia, carbon dioxide emissions, climate, Climate Change, Climatism, CO2 Sensitivity, ECS, GHCN, Global Temperature, Global Warming, Global Warming Hiatus, nasa, nature, NOAA, Satellite Data, science, UAH satellite data, UHI, Urban Heat Island effect 1 Comment
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 (0-10 kms), which happens to be the exact place where anthropogenic global warming is meant to occur, according to anthropogenic global warming theory.
AUS MAY TEMPS -0.4C BELOW AVERAGE
UAH temperature anomaly for May was almost half a degree centigrade (-0.4C) below the 4o year average!
AUSTRALIA Lower Troposheric Temperature Anomaly 1978-2018
SATELLITES Vs LAND TEMPS
SATELLITES have the obvious benefit of measuring only the atmosphere and the effect that carbon dioxide emissions may be having on the atmosphere. Satellite data is not polluted by UHI (Urban Heat Island effect) – artificial heat generated from city infrastructure; asphalt carparks, airpots, highways, AC vents etc.
UHI (Urban Heat Island effect)
TONY Heller did a survey of the ten oldest stations in New South Wales And Victoria, circled below. Three rural stations were not included because of obvious problems with the data, but none showed any warming:
The two urban stations at Melbourne and Sydney both showed strong warming, and both have disastrously poor siting of their thermometers in the middle of large cities.
Melbourne Temperature Anomaly
Sydney Temperature Anomaly
By contrast, all of the rural stations show a long term cooling trend, with some recent warming. (Note that there is no data for the most recent years with some of the rural stations.)
Bathurst Temperature Anomaly
Share this:
DOES The CSIRO Still Stand By Its 2003 Snow Prediction?
Posted: June 17, 2018 Filed under: Alarmist media, Alarmist Predictions, Australia, Climate Alarmism, Climate History, Climate models, Climatism, CSIRO, Dud predictions, Failed Climate Models, Global Temperature, IPCC, Snow Pack | Tags: Alarmism, Alarmist Media, Australia, Australian Alps, carbon dioxide emissions, Climate Change, climate models, CSIRO, Dud Predictions, failed climate models, Failed CMIP5 Models, Global Temperature, Global Warming, IPCC, Mt Buller, Perisher, Precipitation, Record Snow, snow, Snow Extent, Snow Pack Data, Thredbo 1 Comment
“The problem isn’t that Johnny can’t read.
The problem isn’t even that Johnny can’t think.
The problem is that Johnny doesn’t know what thinking is;
he confuses it with feeling.”
– Thomas Sowell
*
AUSTRALIA’S ‘premier’ science body, the CSIRO, is a prime example of a government funded agency who has been fatally captured by global warming groupthink and climate change hysteria, resulting in a litany of failed predictions and costly fear-mongering, thanks in part to their own contribution to the global set of overheated climate models.
AN example of the CSIRO’s fealty towards the Climate Crisis Industry can be seen in the use of sea level rise figures far in excess of even the IPCC…
In its 2012 report, State of the Climate, the CSIRO says that since 1993 sea levels have risen up to 10mm a year in the north and west. That means that somewhere has had a 19cm-rise in sea level since 1993. Where is this place? The European satellite says that sea levels have been constant for the past eight years.
*
CSIRO – The End Of Snow…
A 2003 CSIRO report, part-funded by the ski industry, found that resorts could lose a quarter of their snow within 15 years…
“For the first time, they realised that their attention should be directed to a common enemy,” says Andrew Fairley, head of the Alpine Resorts Co-ordinating Council, which advises the State Government and oversees the management of Victoria’s six snow resorts. “And that enemy is climate change.”
Like those who rely on the Great Barrier Reef, the Australian ski industry sees itself as a frontline victim of global warming. A 2003 CSIRO report, part-funded by the ski industry, found that the resorts could lose a quarter of their snow in 15 years, and half by 2050. The worst case was a 96 per cent loss of snow by mid-century.
Icons under threat: The Alps – General – In Depth – theage.com.au
***
CSIRO – Simulations of future snow conditions in the Australian alpine regions
Conclusion:
The low impact scenario for 2020 has a minor impact on snow conditions. Average season lengths are reduced by around five days. Reductions in peak depths are usually less than 10%, but can be larger at lower sites (e.g. Mt Baw Baw and Wellington High Plains).
The high impact scenario for 2020 leads to reductions of 30-40 days in average season lengths. At higher sites such as Mt Hotham, this can represent reductions in season duration of about 25%, but at lower sites such as Mt Baw Baw the reduction can be more significant (up to 60%)…
We have very high confidence (at least 95%) that the low impact scenarios will be exceeded and the high impact scenarios will not be exceeded.
https://www.climatechange.vic.gov.au/__data/assets/pdf_file/0015/73212/TheImpactofClimateChangeonSnowConditions2003.pdf (Page Not Found – hmm)
*
ALL around the world, warmist institutions and the climate-theory-obsessed compliant mainstream media were once predicting the end of snow… Read the rest of this entry »
Share this:
GLOBAL WARMING THEORY CHECK : Global Temps Continue Century-Record Plunge, Despite Rising Emissions!
Posted: June 6, 2018 Filed under: Carbon Dioxide, Climate Fraud, Climatism, Data Tampering, Empirical Evidence, Gavin Schmidt, Global Temperature, Global Warming Stasis, Government Grants/Funding, Govt Climate Agenda, Green Agenda, NASA, NOAA, Pseudo-Science, Satellite Data | Tags: "The Pause", carbon dioxide emissions, Carbon Emissions, Climate Change, Climate Change Hoax, climate fraud, Climate science, Climatism, CO2, Data Fraud, Gavin Schmidt, GISS, global cooling, Global Warming, Global Warming Hiatus, Global Warming Hoax, Global Warming Scare, nasa, NOAA, Scientific Fraud, Temperature Data Fraud, warming pause 3 Comments
ACCORDING to NASA data, the recent 0.56°C plunge in global temperatures, following the 2015/16 super El Niño, is the greatest two-year cooling event in a century. “You have to go back to 1982-84 for the next biggest two-year drop, 0.47°C—also during the global warming era.”
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 (0-10 kms), the exact place where global warming theory is meant to occur.
MAY TEMPS +0.18C ABOVE AVERAGE
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.
GREENHOUSE GAS THEORY CHECK?
THE latest UAH V6.0 May anomaly of +0.18 brings temperatures back to the levels they were at the beginning of the Century, reinforcing the current 18+ year global warming “pause”, despite record and rising CO2 emissions…
UAH Global Temperature Update for May, 2018- +0.18 deg. C « Roy Spencer, PhD
Latest Global Average Tropospheric Temperatures
Since 1979, NOAA satellites have been carrying instruments which measure the natural microwave thermal emissions from oxygen in the atmosphere. The intensity of the signals these microwave radiometers measure at different microwave frequencies is directly proportional to the temperature of different, deep layers of the atmosphere. Every month, John Christy and I update global temperature datasets that represent the piecing together of the temperature data from a total of fifteen instruments flying on different satellites over the years. A discussion of the latest version (6.0) of the dataset is located here.
The graph above represents the latest update; updates are usually made within the first week of every month. Contrary to some reports, the satellite measurements are not calibrated in any way with the global surface-based thermometer records of temperature. They instead use their own on-board precision redundant platinum resistance thermometers (PRTs) calibrated to a laboratory reference standard before launch.
CO2 CONCENTRATION Vs TEMPS – Correlation?
CO2 Vs Temp Correlation 1979-2018 CLIMATISM
*
GLOBAL TEMPERATURE MEASUREMENTS – JUDGE FOR YOURSELF!
Satellites Vs Thermometers?
*
SATELLITES
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. Read the rest of this entry »
Share this:
TOP 10 Climate Change Alarmist Myths Unearthed : #2 SEA LEVEL RISE
Posted: May 30, 2018 Filed under: Alarmism uncovered, Climate Alarmism, Climate Change, Climate History, Climate science, Climatism, CLIMATISM TOP 10 ALARMIST MYTHS, COP21, Data Tampering, Empirical Evidence, Government Grants/Funding, Govt Climate Agenda, IPCC, NASA, NOAA, Pacific Island Nations, Satellite Data, Scientific Fraud, Sea Level Rise | Tags: Acceleration, Alarmism, Climate Change, Climate Change Alarmism, Climate science, Data Fraud, Data Tampering, Fake News, Gavin Schmidt, Global Warming, Mainstream media, nasa, NOAA, Oceans, Science and Environment, Scientific Fraud, sea level rise, SLR, Tom Karl 1 Comment
“CLIMATE alarmism is a gigantic fraud: it only survives by suppressing dissent and by spending tens of billions of dollars of public money every year on pseudo-scientific propaganda.” – Leo Goldstein
*
CLIMATISM TOP 10 ALARMIST MYTHS – Intro
EXCESSIVE or exaggerated alarm about a real or imagined threat is fundamental in driving the human CO2-induced global warming climate change narrative.
THE most popular climatic and weather-related events, as marketed by the Climate Crisis Industry, fall well within the bounds of natural variability. So, in order for such events to make the headlines, attract taxpayer funding for ‘research’, and advance the misanthropic, man-made climate change agenda, they must be accompanied by inflated language, an urgent tone, imagery of doom, and in many cases, fraudulent data.
IN this series we take an objective/sceptical look at ten of the more popular metrics used by warming alarmists to push the CAGW (catastrophic anthropogenic global warming) narrative, testing the veracity of the all-too-often wild and alarmist claims associated with each…
#2. SEA LEVEL RISE
“THE Seas Are Rising”! You’ve read it, seen it and heard about it just about everywhere in conjunction with the climate change debate. However, the very statement “rising sea levels” is deceptive from the start.
SEA-levels both rise and fall depending on where you are on the planet. Absolute sea-level varies from negative to positive to stable depending on a range of regional factors including: local vertical land motion, land use, salinity, regional ocean circulations, ocean heat content and tidal variations…
NEGATIVE CHANGE
Mean Sea Level Trend
040-081 Narvik, Norway
Mean Sea Level Trend
050-141 Stockholm, Sweden
Mean Sea Level Trend
Juneau, Alaska
*
POSITIVE CHANGE
Relative Sea Level Trend
The Battery, New York
Relative Sea Level Trend
Le Havre, France
*
STABLE
REMEMBER the “sinking” Pacific Island nations…
THE climate-theory-obsessed mainstream media has gleefully pawned the emotional link between climate change and ‘sinking’ tropical islands to push their man-made global warming agenda…
“The tiny pacific island nation of Tuvalu looks set to become a victim of global warming, with the entire country predicted to be washed away in 50 years.” (BBC 2002)
TUVALU’s plight even formed part of the basis for arguably the most hysterical fake news claim in the history of climate alarmism: the UN’s prediction that by the end of 2010, climate change would have created “50 million environmental refugees”!
CLIMATISM, along with the climate sceptic “denier” community have been citing actual scientific data and empirical observations that have consistently contradicted the hysterical claims made by the mainstream media of “drowning island nations” for years…
Relative Sea Level Trend
Funafati B, Tuvalu
Share this:
THE Mind-blowing Costs Of Global Warming Hysteria
Posted: May 21, 2018 Filed under: Alarmism, Alarmism uncovered, Alarmist media, Alarmist Predictions, Australia, Climatism, Dud predictions, Energy Poverty, Failed Climate Models, Failed Green Schemes, Flannery, Global Warming Zealots, Government Grants/Funding, Green Agenda, Taxpayer waste, Tim Flannery, Unreliables | Tags: Alarmism, Climate alarmism, Climate Change, Climate Change Scam, Climatism, Dan Andrews, desal, Desalinisation, Desalinisation Plants, Dud Predictions, Energy Poverty, Flannery, Fuel Poverty, Global Warming, Global Warming Scam, Green Energy, Green Energy Failure, Scare Mongering, Science and Environment, Taxpayer Billions, Tim Flannery, unreliables 6 Comments
WHEN will climate-theory-obsessed politicians and sycophant media finally call off their global warming climate change jihad that’s punishing the poor without helping the planet?
WE were told we’d have more cyclones, not less.
WE were promised “permanent” drought, not record rains.
WE were promised less snow, not more.
WE were promised more “extreme weather”, not less.
WE were promised fewer crops, not record output.
WE were promised fewer polar bears, not more.
WE were promised more global warming, not a near twenty year warming “pause”.
POWER prices through the roof.
PENSIONERS unable to pay for their heating or cooling.
IT’S time to count the shocking price we’ve paid for listening to global warming scaremongers like Tim Flannery.
SEE now what their panic-making has inspired – global warming schemes that have hurt us infinitely more than any slight global warming could ever do.
*
DURING the height of the global warming scare around 2007, soon after Al Gore’s science fiction movie “An Inconvenient Truth” aired, (which was swiftly shot down as a “political fiction” by the British High Court’s, Judge Michael Burton who ruled that errors had arisen “in the context of alarmism and exaggeration”) Tim Flannery infamously claimed:
“SO, even the rain that falls isn’t actually going to fill our dams and our river systems…” – Tim Flannery 2007
In 2004 Flannery said:
“I think there is a fair chance Perth will be the 21st century’s first ghost metropolis. It’s whole primary production is in dire straits and the eastern states are only 30 years behind.”
We are “one of the most physically vulnerable people on the Earth,” and “southern Australia is going to be impacted very severely and very detrimentally by global climate change.” We are going to experience “conditions not seen in 40 million years.”
In 2007 he said:
“…That’s because the soil is warmer because of global warming and the plants are under more stress and therefore using more moisture. So even the rain that falls isn’t actually going to fill our dams and our river systems, and that’s a real worry for the people in the bush. If that trend continues then I think we’re going to have serious problems, particularly for irrigation.”
“The one-in-1000-years drought is, in fact, Australia’s manifestation of the global fingerprint of drought caused by climate change.”
In May 2007 he warned that:
“Brisbane and Adelaide – home to a combined total of three million people – could run out of water by year’s end;”
and that the country was facing
“the most extreme and the most dangerous situation arising from climate change facing any country in the world right now.”
In June 2007 he said:
“Over the past 50 years southern Australia has lost about 20 per cent of its rainfall, and one cause is almost certainly global warming. Similar losses have been experienced in eastern Australia, and although the science is less certain it is probable that global warming is behind these losses too. But by far the most dangerous trend is the decline in the flow of Australian rivers: it has fallen by around 70 per cent in recent decades, so dams no longer fill even when it does rain …
In Adelaide, Sydney and Brisbane, water supplies are so low they need desalinated water urgently, possibly in as little as 18 months.”
In 2008 he warned again that:
“The water problem is so severe for Adelaide that it may run out of water by early 2009.”
AND then the rains came, as they always do in the land of “droughts and flooding rains“…
BY December 2008 Adelaide’s reservoirs were 75% full, Perth’s 40%, Sydney’s 63%, and Brisbane’s reservoir’s were 46% full.
BY 2009 dams for Brisbane, Canberra and Sydney were filled to overflowing.
PRESENTLY Adelaide’s reservoirs are 57%, Perth’s 39%, Melbourne’s 59%, Sydney’s 77%, and Brisbane’s reservoir’s are 83% full.
*
MOTHBALLED DESALINISATION PLANTS
In 2005 Flannery wrote in “The Weather Makers“:
Australia’s east coast is no stranger to drought, but the dry spell that began in 1998 is different from anything that has gone before….The cause of the decline of rainfall on Australia’s east coast is thought to be a climate-change double whammy – the loss of winter rainfall and the prolongation of El Nino-like conditions.
The resulting water crisis here is potentially even more damaging than the one in the west … As of mid 2005 the situation remains critical… very little time to arrange alternative water sources such as large-scale desalination plants.
$12 BILLION worth of desalination plants built in South Australia, Queensland, NSW and Victoria have all been mothballed without producing a drop of water. All were built in preference to much cheaper dams, because of green bans and because warming alarmists claimed the rains would not return.
FIVE desal plants have been built in Australia. Only Perth’s is used.
COSTS to run each mothballed deal plant are estimated at between $500,000 to $1,000,000 per day, every day until contracts run out around 2030.
THIS is what Victoria’s mothballed desal plant is costing the taxpayer each and every year until, at least, 2030… Read the rest of this entry »
Share this:
PLEASE Tip The Climatism Jar To Help Keep The Good Fight Alive!
Posted: February 19, 2018 Filed under: Alarmism, Alarmist media, Australia, BIG Government, Climate Alarmism, Climatism, Energy Poverty, Government Grants/Funding, Sceptics, Science | Tags: Academic Freedom, Alarmism, big government, Big Oil, Blog, Climate Change, Climate wars, Climatism, DONATE, Freedom Of Speech, funding, Global Warming, Green Agenda, Koch Brothers, sceptics, Scientific Integrity 2 Comments
CLIMATISM is a self-funded, one-man operation that has been running on fossil-fuel vapours and borrowed time since 2014.
LIKE most climate ‘sceptical’ outfits, success of message is reliant on a lot of passion and private support. After all, that cheque from “Big Oil” never arrived in the mail, much to the dismay of the climate cult who are convinced that the combined success of our individual efforts in fighting the “Climate Crisis Industry” must come down to funding from those “Koch Bros.” or “Exxon-Mobil”. Trust me, it doesn’t!
SCEPTICS are not funded or subsidised by BIG government, unlike BIG green whose associated NGO’s and multinational green mega-corporations are funded to the tune of BILLIONS annually via subsidies, tax incentives, green loans and grants. Read the rest of this entry »
Share this:
HISTORY OF THE GLOBAL WARMING SCARE 1980-2010
Posted: June 21, 2018 Filed under: Climate Alarmism, Climate History, Empirical Evidence, Environmentalism, Global Warming, Propaganda, Pseudo-Science | Tags: climate, Climate Change, Climate Change Scam, Climate history, Climate science, Global Warming, Global Warming Scam, History, propaganda, pseudo-science, science 1 CommentA monumental body of work. Meticulously researched and accurately referenced by climate-sceptical scientist and friend, Cha-am Jamal (Thailand)…
- Chapter 1 1980-1985
https://chaamjamal.wordpress.com/2010/05/09/history-of-the-global-warming-scare/
- Chapter 2 1985-1990
https://chaamjamal.wordpress.com/2010/05/10/the-history-of-the-global-warming-scare-1985-1990/
- Chapter 3 1990-1995
- Chapter 4 1995-2000
- Chapter 5 2000-2005
https://chaamjamal.wordpress.com/2018/06/09/history-of-the-global-warming-scare-chapter-5-2000-2005/
- Chapter 6 2005-2010
https://chaamjamal.wordpress.com/2018/06/15/history-of-the-global-warming-scare-chapter-6-2005-2010/
Share this:
HUDSON BAY ICE Update: More Thick First-Year Ice Habitat For #PolarBears In 2018 Than 2004
Posted: June 21, 2018 Filed under: Alarmism Debunked, Arctic, Climate science, Dud predictions, Fact Check, Global Sea Ice, Government Grants/Funding, Polar Bears | Tags: arctic, Climate Change, Fact Check, Global Warming, Hudson Bay, Multi-Year Thick Sea Ice, Polar Bears, Sea Ice, Susan Crockford Leave a commentNO wonder climate catastrophists have switched poles and are picking on Antarctica, for now! Arctic first-year and multi-year sea-ice breaking all sorts of decadel records, wrecking their “Arctic Death Spiral” agenda up there! Lol.
Despite pronouncements from one polar bear specialist that “ice in Hudson Bay is in rapid retreat” a look back in time shows that there is more thick first year ice over the Bay this year for the week of the summer solstice than there was in 2004 – and much less open water than 1998.
Below, 2018, June 18 (the week of the summer solstice):
Compare the above to the same week coverage chart for 2004, below:
Ice coverage for some other recent years are shown below compared to 1998, the year the ice breakup pattern on Hudson Bay changed. Speed and melt sequences vary according to the amount of thick first year ice present, discussed previously here.
PS. If you’re wearing white today, flaunt it! Tell your friends and colleagues that you’re celebrating the success of polar bears despite such low summer sea ice since…
View original post 271 more words
Share this:
Dumb Power
Posted: June 18, 2018 Filed under: Energy Poverty, Fact Check, Failed Green Schemes, Government Grants/Funding, Green Energy, Renewables, Socialism, Solar, Unreliables, Wind Farms | Tags: Climate Change, Climate Change Scam, Energy Density, Energy Poverty, Fuel Poverty, Global Warming Scam, Government grants, Solar panels, Solar PV, Taxpayer waste, unreliables, wind energy scam, Wind Farms, wind power Leave a comment#Unreliables
By Paul Homewood
h/t Philip Bratby
This article in American Thinker covers much of the same ground I have , but it is interesting looking at it from the US perspective:
Wind and solar electricity are renewable energy. How nice to pluck energy out of the air and the sky.
It’s a scam. Big money men and screwball dreamers, otherwise called environmentalists, are behind the scam.
Apparently, it has not dawned on the believers in the scam that solar does not work at night, and wind works only when the wind is blowing. The core characteristic of wind and solar is that they are erratic sources of electricity. The supply is randomly intermittent. Who in Hell thinks this dumb energy is a good way to supply electricity?
The wind and solar promoters, in order to accommodate their dumb energy, demand that the electric grid be re-engineered to become a “smart”…
View original post 986 more words
Share this:
GREEN Flop! Coal Still Rules As @Greens Play Themselves
Posted: June 17, 2018 Filed under: Energy Poverty, Fossil Fuels, Green Agenda, Green Energy, Nuclear, Renewables, Unreliables | Tags: Climate science, coal, Energy, Energy Poverty, Fukushima, Global Warming, Green Energy Failure, Greens, Nuclear, unreliables Leave a comment
By Andrew Bolt ~
This move to green energy is costing a bomb without lessening reliance on coal:
Wind and solar account for just six percent of total electricity globally, despite decades of subsidies. The growth of fossil fuels were enough to wipe out any emissions reductions from wind and solar, which grew 17 percent and 35 percent, respectively.
According to Bloomberg New Energy Finance (BNEF), public and private actors spent $1.1 trillion on solar and over $900 billion on wind between 2007 and 2016…. To put this roughly $2 trillion in investment in solar and wind during the past 10 years in perspective, it represents an amount of similar magnitude to the global investment in nuclear over the past 54 years, which totals about $1.8 trillion.
Turns out the green movement also played itself. Hysterical scaremongering over the Fukushima emergency had a number of nuclear plants closed, especially…
View original post 480 more words
Share this:
THE Orwellian Era Of @NASA Climate Pseudoscience
Posted: June 13, 2018 Filed under: Climate Fraud, Climate History, Climate science, Climatism, Data Tampering, Gavin Schmidt, NASA, Pseudo-Science, The Sun | Tags: Bogus Climate Consensus, Carbon Dioxide, carbon dioxide emissions, Climate Change, climate fraud, Climatism, Data Tampering, Earth Sciences, Fraud, Gavin Schmidt, Global Warming, James Hansen, Jim Bridenstine, nasa, nature, Rewriting History, Scientific Fraud, The Sun 3 Comments
“HE who controls the past controls the future. He who controls the present controls the past.” – George Orwell
*
BEFORE NASA climate was completely captured by the radical environmental movement and grant-gleefully sold their soul to the widely debunked “97% of scientists believe that CO2 is the climate control knob” groupthink-consensus-virus, they knew perfectly well that the sun controlled Earth’s climate.
AND, before the new-NASA-activists rewrote climate ‘science’, the National Aeronautics Space Agency boldly (and correctly) noted that “Other important forcings of Earth’s climate system” such as “clouds, airborne particulate matter, and surface brightness [have] the capacity to exceed the warming influence of greenhouse gases and cause our world to cool.”
FROM the above NASA article that disappeared around 2010 :
WHAT ARE THE PRIMARY FORCINGS OF THE EARTH SYSTEM?
The Sun is the primary forcing of Earth’s climate system. Sunlight warms our world. Sunlight drives atmospheric and oceanic circulation patterns. Sunlight powers the process of photosynthesis that plants need to grow. Sunlight causes convection which carries warmth and water vapor up into the sky where clouds form and bring rain. In short, the Sun drives almost every aspect of our world’s climate system and makes possible life as we know it.
Earth’s orbit around and orientation toward the Sun change over spans of many thousands of years. In turn, these changing “orbital mechanics” force climate to change because they change where and how much sunlight reaches Earth. Thus, changing Earth’s exposure to sunlight forces climate to change. According to scientists’ models of Earth’s orbit and orientation toward the Sun indicate that our world should be just beginning to enter a new period of cooling — perhaps the next ice age.
However, a new force for change has arisen: humans. After the industrial revolution, humans introduced increasing amounts of greenhouse gases into the atmosphere, and changed the surface of the landscape to an extent great enough to influence climate on local and global scales. By driving up carbon dioxide levels in the atmosphere (by about 30 percent), humans have increased its capacity to trap warmth near the surface.
Other important forcings of Earth’s climate system include such “variables” as clouds, airborne particulate matter, and surface brightness. Each of these varying features of Earth’s environment has the capacity to exceed the warming influence of greenhouse gases and cause our world to cool. For example, increased cloudiness would give more shade to the surface while reflecting more sunlight back to space. Increased airborne particles (or “aerosols”) would scatter and reflect more sunlight back to space, thereby cooling the surface. Major volcanic eruptions (such as that of Mt. Pinatubo in 1992) can inject so much aerosol into the atmosphere that, as it spreads around the globe, it reduces sunlight and cause Earth to cool. Likewise, increasing the surface area of highly reflective surface types, such as ice sheets, reflects greater amounts of sunlight back to space and causes Earth to cool.
Scientists are using NASA satellites to monitor all of the aforementioned forcings of Earth’s climate system to better understand how they are changing over time, and how any changes in them affect climate.
science.nasa.gov/…/what-are-the-primary-causes-of-the-earth-system-variability
2018
*
“HE who controls the past controls the future. He who controls the present controls the past.” – George Orwell
*
H/t @ApafarkasAgmand Read the rest of this entry »
Recent Comments