Video edited on Kapwing
Sunday, April 30, 2023
SAVE LAWSUIT BILLIONS WITH A TWITTERTUCK AI AVATAR !
Thursday, April 27, 2023
Tuesday, April 25, 2023
ON THE BEACH : DOUBLE DIGIT OCEAN HEAT ANOMALIES
EARTH SYSTEM SCIENCE DATA Reports local ocean temperature anomalies on America's East Coast in March were up to 13.8 C higher than the 1981-2011 average. As can be seen above, onshore SST anomalies of > 5 C continue. |
Sunday, April 23, 2023
CUE THE NEW CHRISTY MINSTRELS
A NOAA-STAR
dataset is born…
What does a new entrant in the lower troposphere satellite record stakes really imply?
At the beginning of the year, we noted that the NOAA-STAR group had produced a new version (v5.0) of their MSU TMT satellite retrievals which was quite a radical departure from the previous version (4.1). It turns out that v5 has a notable lower trend than v4.1, which had the highest trend among the UAH and RSS retrievals. The paper describing the new version (Zou et al., 2023) came out in March, and with it the availability of not only updated TMT and TLS records (which had existed in the version 4.1), but also a new TLT (Temperature of the Lower Troposphere) record (from 1981 to present). The updated TMT series was featured in the model data comparison already, but we haven’t yet shown the new TLT data in context.
Readers will recall that the TLT product is nominally a weighted average of atmospheric temperature anomalies from the surface up to 5km or so. The weighting varies a little between land and ocean, and as a function of topography or surface type (some model-observation comparisons take this into account, but a global uniform weighting is often good enough).
The nature of the measurement, using off-nadir scans of the instrument made the retrieval more noisy than other MSU prodcuts, and it has taken time to deal with those issues. Some long-timers might even recall the rather tumultuous history, involving over-confident claims of precision, the discovery of systematic biases because of orbital decay, corrections, independent replication and more errors, more corrections, etc.
[ E.G., Spencer & Christy's evangelical 1990 Science Editorial :
"Virtually everyone, children included, is concerned about global climate change and especially about the greenhouse effect. They have learned of increases in carbon dioxide. They have been told repeatedly that temperatures will increase 9'F. Political pressure is mounting to take action regardless of cost, and to take action now.
But how good is the evidence, and how likely is substantial global warming? When might it happen?
Applying the customary standards of scientific inquiry, one must conclude that there has been more hype than solid facts ...
Modeling of global climate is largely concentrated on examining effects of doubling the atmospheric content of greenhouse gases... the answers they get are functions of the models they employ."]
This history should temper any claims now that the structural uncertainty has finally been beaten down, but it’s worth digging in a little deeper to see where it comes in.
Friday, April 21, 2023
ELECTION 2032: THIS IS YOUR CHATBOT ON BEAN CURD
The ability to store tofu products for long periods without greenhouse gas refrigerants led anti-meat-&-refrigeration activists to add bean curd riders to anti gas stove & barbecue legislation, as fossil fuel advertising bans spread across the nation from Portland to Cambridge and the CJR/Covering Climate Now coalition merged with the nationwide Tofu advertising campiagn organized by PETA, and funded by the Seven Soy Sisters:
- Amy's Kitchen, Cargil, Dean Foods, Eden Foods, Goop, Hain, Celestial Group and Vitasoy
The Vegan Playbook for the 2032 Presidential election could include the following actions:
Promote plant-based diets:Ban meat in public institutions, schools and hospitals:
Increase tofu production:
Promote food recycling:
Ban gas stoves and barbecues:
Thursday, April 20, 2023
HOW TO STOP WORRYING AND SET OFF THE BOMB
THE NATION
The First Great Action Movie About Climate Justice?
A conversation with Daniel Goldhaber about adapting Andreas Malm’s How to Blow Up a Pipeline into a politically-minded thriller
DANIEL GOLDHABER:
Climate change is urgent. We’re on a timeline of years or months, not decades, to solve this problem.
Wednesday, April 19, 2023
Tuesday, April 18, 2023
Monday, April 17, 2023
GRAVITY HAPPENS
As the Greenland ice cap increased in mass during the Little Ice Age, the sea drew near as the ice grew thick,.
While global average sea level fell due to water displacement from oceans to ice caps between 1400 and 1800 AD, the change in local gravity paradoxically raised coastal sea level by as much as 3 meters, inundating coastal farms and settlements.
Sea-level rise in Southwest Greenland as a contributor to Viking abandonment
PNAS
Abstract
The first records of Greenland Vikings date to 985 CE. Archaeological evidence yields insight into how Vikings lived, yet drivers of their disappearance in the 15th century remain enigmatic. Research suggests a combination of environmental and socioeconomic factors, and the climatic shift from the Medieval Warm Period (~900 to 1250 CE) to the Little Ice Age (~1250 to 1900 CE) may have forced them to abandon Greenland. Glacial geomorphology and paleoclimate research suggest that the Southern Greenland Ice Sheet readvanced during Viking occupation, peaking in the Little Ice Age. Counterintuitively, the readvance caused sea-level rise near the ice margin due to increased gravitational attraction toward the ice sheet and crustal subsidence. We estimate ice growth in Southwestern Greenland using geomorphological indicators and lake core data from previous literature. We calculate the effect of ice growth on regional sea level by applying our ice history to a geophysical model of sea level with a resolution of ~1 km across Southwestern Greenland and compare the results to archaeological evidence. The results indicate that sea level rose up to ~3.3 m outside the glaciation zone during Viking settlement, producing shoreline retreat of hundreds of meters. Sea-level rise was progressive and encompassed the entire Eastern Settlement. Moreover, pervasive flooding would have forced abandonment of many coastal sites. These processes likely contributed to the suite of vulnerabilities that led to Viking abandonment of Greenland. Sea-level change thus represents an integral, missing element of the Viking story.