by Marcia Wendorf, May 15, 2019 in InterestingEngineering
Between 1300 and 1850, the Earth experienced a Little Ice Age whose cause to this day is not known.
During the period 950 CE to 1250 CE, the earth experienced an unusually warm period, which became known as the Medieval Warm Period (MWP) or the Medieval Climatic Anomaly. At their height, temperatures during that period were similar to those experienced during earth’s mid-20th-century warming period.
Following the Medieval Warm Period came a period of intense cold, which has become known as the Little Ice Age (LIA). The term “Little Ice Age” was coined by Dutch-born American geologist F.E. Matthes in 1939. The LIA began around 1300 CE and lasted until about 1850 CE.
Within that stretch, NASA’s Earth Observatory has described three particularly cold periods: one around 1650, a second around 1770, and the third around 1850.
by P. Gosselin, March 31, 2019 in NoTricksZone
and Pierre Gosselin
One fellow climate blogger recently wrote on how he’s been been looking at GHCN ‘unadjusted’ data and noticed that scientists at NASA appear to have been altering them: “This is a fairly disturbing development,” he wrote.
Heating up Reykjavik and Nuuk
Cited as an example is Reykyavik, Iceland. According to Tony Heller here, “The current version V4 has massively cooled the past, to make it look like Iceland is warming.”
Heller then posted a chart showing the difference between v2 unadjusted and the new v4 ‘unadjusted’ for the Reykjavik station.
Heller also found here that the same appears to be the case for Nuuk, Greenland as well.
by P. Homewood, February 18, 2019 i
Here’s the text from the original page (my bolding).
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. (Please see for more details.) 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.
Repost from JoNova
by P. Homewood, January 15, 2019 in NotaLotofPeopleKnowThat
Antarctica is shedding ice at a staggering rate.
Scientists have discovered global warming has caused the melting of the ice on the continent to increase sixfold since 1979.
This phenomenal rate of melting has seen global sea levels rise by more than half an inch – and experts predict it will get worse.
Scientists have predicted a ‘multi-meter sea level rise from Antarctica in the coming centuries’ as a result of the vast loss of ice.
Researchers discovered that, between 1970 and 1990, the continent was shedding an average of 40 gigatons of ice mass annually.
This jumped to an average of 252 gigatons a year between 2009 and 2017.
You may of course recall that it was only three years ago that the same NASA, who are behind this latest scare story, were telling us that the ice cap was actually growing in Antarctica. But more of that in a minute.
There are several aspects to this latest story that need closer examination.
by Dr. D. Thresher, January 4, 2019 in ClimateChangeDispatch
The results of NASA GISS’s climate model, oft-cited as proof of global warming, are thus still questionable since the model is almost certainly full of bugs.
Pointing all this out, particularly on RealClimatologists.org, is how I became known as a climate change denier.
by Eric Worrall, December 11, 2018 in WUWT
According to NASA, the increased rate of thickening of sea ice in the Arctic is due to Global Warming.
Read more: https://www.nasa.gov/feature/goddard/2018/wintertime-arctic-sea-ice-growth-slows-long-term-decline-nasa
The abstract of the study:
Read more: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018GL079223
I guess we should count ourselves lucky the world isn’t currently in a cooling phase, otherwise we might lose the Arctic icepack altogether.
by Anne Dolhein, 2 october 2018 in Reinformation.TV
La NASA – peu suspecte de climato-scepticisme – s’appuie sur de nouveaux résultats d’observations de température aux confins de l’atmosphère terrestre pour annoncer un refroidissement notable dans ces zones, lié à l’un des minima solaires les plus importants de l’ère spatiale. Il s’agit très clairement d’un refroidissement climatique entraîné par la baisse de l’activité solaire, confirmant le rôle important sinon prépondérant du soleil sur les variations de température de la planète.
« Nous constatons une tendance au refroidissement », vient ainsi de déclarer Martin Mlynczak, chercheur principal associé du centre de recherches Langley de la NASA. « Très loin de la surface de la terre, près du bord de l’espace, notre atmosphère perd de l’énergie calorifique. Si les tendances actuelles se poursuivent, on pourrait bientôt atteindre un record de froid pour notre ère spatiale », a-t-il affirmé.
by Anthony Watts, September 28, 2018 in WUWT
These results come from the SABER instrument onboard NASA’s TIMED satellite. SABER monitors infrared emissions from carbon dioxide (CO2) and nitric oxide (NO), two substances that play a key role in the energy balance of air 100 to 300 kilometers above our planet’s surface. By measuring the infrared glow of these molecules, SABER can assess the thermal state of gas at the very top of the atmosphere–a layer researchers call “the thermosphere.”
When the thermosphere cools, it shrinks, literally decreasing the radius of Earth’s atmosphere. This shrinkage decreases aerodynamic drag on satellites in low-Earth orbit, extending their lifetimes. That’s the good news. The bad news is, it also delays the natural decay of space junk, resulting in a more cluttered environment around Earth.
by Anthony Watts, August 23, 2018 in WUWT
The world is on fire. Or so it appears in this image from NASA’s Worldview. The red points overlaid on the image designate those areas that by using thermal bands detect actively burning fires. Africa seems to have the most concentrated fires. This could be due to the fact that these are most likely agricultural fires. The location, widespread nature, and number of fires suggest that these fires were deliberately set to manage land. Farmers often use fire to return nutrients to the soil and to clear the ground of unwanted plants. While fire helps enhance crops and grasses for pasture, the fires also produce smoke that degrades air quality.
by James E. Kamis, August 7, 2018 in ClimateChangeDisatch
In what amounts to dissension from National Aeronautics and Space Administration (NASA) climate change policy, a series of just-released studies by working-level scientists prove that geological and not atmospheric forces are responsible for melting of Earth’s polar ice sheets.
by Tony Heller, May 22, 2018 in TheDeplorableClimateScienceBlog
Settled science at NASA means constantly rewriting the past. Here are a few of the NASA Reykjavik, Iceland temperature graphs I have captured over the past six years.
by A. Watts, May 15, 2018 in WUWT
NASA says the greening of the planet is due to increased CO2, these guys are arguing against that, saying increased forest growth “correlates strongly to the UN Development Programme’s Human Development Index”. Riiiighht. They say that “Europe’s early turnaround and expansion of forest resources obviously can’t be attributed to the rapid rise of atmospheric carbon dioxide that began decades later”. By the same token, the U.N. didn’t exist until decades later, and they sure as hell haven’t had any impact on the greening of the Eastern United States as shown in their map below (…)
by Anthony Watts, April 6, 2018 in WUWT
Huge hole over 400,000 miles long (700,000 kilometers) is 55 times wider than the Earth A wide hole in the sun’s atmosphere is facing Earth and spewing a stream of solar wind toward our planet. Estimated time of arrival: April 9th. In this extreme ultraviolet image from NASA’s Solar Dynamics Observatory, we see not only the […]
by Anthony Watts, March 27, 2018 in WUWT
A new paper published by NASA by Tsigaridis and Kanakidou suggests that climate models have missed the forcing effects of organic aerosols, such as VOC’s from trees, oceans, and other sources that combine chemically in the atmosphere to create new compounds. Known as Secondary organic aerosols (SOA), they say “SOA forcing could exceed that of sulfate and black carbon”.
by tonyheller, March 20, 2018 in TheDeplorableClimSciBlog
NOAA’s US temperature record shows that US was warmest in the 1930’s and has generally cooled as CO2 has increased. This wrecks greenhouse gas theory, so they “adjust” the data to make it look like the US is warming.