Turns out "climate change" had nothing to do with Nepal tragedy
Bedrock on which the glacier rested collapsed. Thanks to Chris Martz for pointing this out.
Bedrock on which the glacier rested collapsed. Thanks to Chris Martz for pointing this out.
a significant factor in the glacier's collapse...rising temperatures cause glacial melting with water leaking down through the many, many crevasses to the permafrost "glue" below, as well as fractures in the bedrock...i.e. weakening the bond that holds the glacier back.
Listening to a 'Cherry Picking' climatologist is never a good idea...but you have an amazing inclination for betting on losers.
You continually keep linking to information that later is discredited. And you did it again.
water dripping down to the permafrost base and weakening it...along with the bedrock cracks that get worse from repeated freezing and thawing each year. Were it not for Anthropogenic Global Warming...which he ADMITS to...we'd be in a Milankovitch driven Cooling Trend right now, instead of glaciers melting away...and sometimes collapsing.
Here's Chris Martz's statement...note the numerous times he "Speculates"...
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Chris Martz
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Landslides and avalanches in Nepal's Himalaya region are driven by tectonic activity and earthquake
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Landslides / avalanches in Nepal have happened for tens of millions of years. In fact, floods associated with landslides are how the V-shaped valleys in the region were carved out millions of years ago at pre-industrial atmospheric carbon dioxide (CO₂) concentrations.
The Himalaya is an exceptionally steep and tectonically active mountain range where earthquakes trigger landslides, avalanches, and glacier collapses fairly regularly. The Google Earth satellite image I pulled up shows this well.
Although an earthquake likely did not trigger the devastating landslide the other day, moderate earthquakes occur often due to plate tectonic movement lifting the Himalaya upward driving India into the Asian continent, and it is likely earthquakes in recent years and months helped set the stage for this.
Frequent seismic shaking in alpine areas can fracture glaciers by creating crevasses, unstable blocks of ice called “seracs,” and hanging ice.
🔗 https://nhess.copernicus.org/articles/23/2569/2023/
The north face of the Himalaya in the Langtang Valley is characterized by steep slopes that are conducive for “hanging glaciers” (a type of glacier that starts high on a steep mountain wall and stops abruptly, usually at a cliff edge). These hanging glaciers are far more susceptible to destabilization and often produce avalanches when ice is knocked loose.
Although warming and surface melt can affect glacier stability, basal conditions are largely controlled by geothermal heat flux, friction, pressure, and bedrock geography.
And while there aren’t any paleoclimate temperature reconstructions in the exact area the recent disaster unfolded, there is evidence that both the Himalaya and Tibetan Plateau were warmer throughout much of the early-to-mid Holocene than they are today (e.g., Chen et al, 2020; Feng et al., 2022), which suggests that glaciers in the region may have also been smaller.
🔗 https://link.springer.com/article/10.1007/s11430-019-9599-y
🔗 https://agupubs.onlinelibrary.wiley.com/.../2022GL098740
Climate change is real, yes. It always has changed and always will, and I don’t deny that at least some modern warming is due to carbon dioxide (CO₂) emissions.
But glaciers are not a permanent fixture of our environment and we need to quit pretending that they are. Glaciers will always be growing or receding; they are not supposed to stay static over time.
Pretending so is a fool’s errand.
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Google the chart of atmospheric CO2 concentration over the last 800,000 years of many Ice Ages...and note the doubling of that band in just the last 150 years...add to that the increasing global temperatures documented by Dr. Roy Spencer and you can see that CC is definitely impacting the world's glaciers...including those in the Himalayas.
I hardly think you know more about this than he does.
...here is an excerpt from the article I gave you earlier...
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Mohd Farooq Azam, a specialist with ICIMOD, said the increasing frequency of hazards in the cryosphere - or the frozen parts of the Earth - "is becoming more visible than ever before. The pace of change is so rapid."
While it is difficult to say whether any single event is caused by climate change, "when you look at the pattern of these events, you do think climate change could have an impact," said Dr Cook.
"The logic is that with a warming planet, you will see shrinking glaciers, lots of snow melt. The permafrost that is partially holding some mountainsides together is warming and thawing and degrading."
"So you are going to get more landslides, debris flows, glacial meltwater, lake outbursts, glacier collapses, because climate warming ultimately destabilises these high mountain environments."
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It doesn’t get dumber than that.