Himalaya glaciers melt unnoticed

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Discussion Overview

The discussion revolves around the melting of glaciers in the Himalayas, with participants examining claims made in an article about the state of these glaciers. The conversation touches on environmental concerns, the reliability of satellite data, and the implications of glacier changes for local populations.

Discussion Character

  • Debate/contested
  • Exploratory
  • Technical explanation

Main Points Raised

  • Some participants express concern that the melting of Himalayan glaciers could have disastrous effects on millions of people, as highlighted by environmentalists.
  • Others point out that satellite data indicates some glaciers are stable or even advancing, particularly in the western and northern regions, raising questions about the reliability of the article's claims.
  • One participant notes that glacier length variations are more influenced by precipitation and humidity rather than temperature, suggesting a complex relationship between climate factors and glacier dynamics.
  • There are claims that recent studies contradict the IPCC's assertions regarding glacier retreats, attributing some of these changes to increasing aridity rather than global warming.
  • Criticism is directed at the article's title and content, with participants arguing that it presents speculation as fact and lacks sufficient evidence for its claims about rising temperatures and glacier melting.
  • One participant emphasizes personal observations of glacier retreat, specifically mentioning the Gangotri glacier, and asserts that the changes are noticeable regardless of the causes.

Areas of Agreement / Disagreement

The discussion reflects multiple competing views regarding the state of Himalayan glaciers, with no consensus reached on whether they are melting unnoticed or if some are advancing. Participants express differing opinions on the reliability of the article and the interpretations of satellite data.

Contextual Notes

Participants highlight limitations in the article's claims, such as a lack of recent studies and evidence for rising temperatures, which may affect the conclusions drawn about glacier behavior.

Ivan Seeking
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Environmentalists are warning that the melting of glaciers in the Himalayas could spell disaster for millions of people living in the region. [continued]
http://news.bbc.co.uk/1/hi/sci/tech/3998967.stm
 
Earth sciences news on Phys.org
For now, there is reliance on satellite data. This even shows some glaciers are stable or advancing, particularly in the west and north.
This confuses the issue, why do satellite data give an opposite result?
 
Yes, there are several glaciers growing, especially in Norway, Alaska and South America.

A few remarks:

The variation in glacier length is highly dependent on the precipitation, relative humitidy and much less on temperature.

Despite the claims of IPCC in the next link, the reason for many glacier retreats (ig Kilimanjaro) has been identified positively as increasing aridity in more recent studies than the IPC cites.

Temperature increase in mountainous areas facilitate snowfall and hence glacier growth. -5C is much better for snowing than -20C

The acceptance standards are inversely proportional to the attractiveness of the message. Hence, you will not find a advancing glacier in the http://www.grida.no/climate/ipcc_tar/wg1/064.htm easily

This in turn confirms that the global warming lobby and IPCC are well underway to bias beyond acceptable levels.

I wonder if the first poster had read the urgent and important thread.
 
Last edited:
I find this to be a poor article.

First - and most importantly - it is highly disingenious. It is titled "Himalaya glaciers melt unnoticed." This title can only be taken to mean that they are melting. However, since no studies have been done for a decade, there is no evidence of this. The title should read "Himalaya glaciers could be melting unnoticed." The only evidence given actually suggests that glaciars are advancing. They state that the glacial lakes are growing, but provide no references for this.

Secondly, there is an entire section called "Rising Temperatures" that provides no evidence of rising temperatures. Even if most of the Earth is warming, this area may or may not be.

The entire article is speculation. The sad thing is, even without global warming there is still reason for people to watch out for flooding and other natural disasters. By presenting this issue along with a myriad of unbacked facts they are doing the people there a disservice.
 
By the way Ivan, I do not want you to think I do not appreciate your postings. I hope you do not take my opinion about one reference and apply it to all posts.
 
Yes, those headings in the article are rather misleading and the author doesn't seem to explain his reason for claiming the lakes may be growing. I've heard about the problem of large glacial lakes in asia possibly flooding people downstream before, so i think there is some reason to believe the lakes have been growing. but the article doesn't mention that. to his credit, the author doesn't claim the uncited 'shrinking' of glaciers is connected to AGW.
 
no himalayan glaciers are not melting unnoticed. we indians can't help noticing it, especially when one-third of gangotri glacier has gone in the past decade and a general retreat in snowline making "cold" hill stations unbearably hot. whatever the cause it IS HAPPENING.
 

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