They measured soot concentrations in ice cores from five
Tibetan glaciers, and found radiatively significant amounts in all but one, with evidence for recent increases in at least two.
2007/04/19: Nation: China vs. Earth The message is clear: Shanghai under water,
Tibetan glaciers disappearing, crop yields in precipitous decline, epidemics flaring.
The range of 1.4 °C to 4.3 °C in the committed warming overlaps and surpasses the currently perceived threshold range of 1 °C to 3 °C for dangerous anthropogenic interference with many of the climate - tipping elements such as the summer arctic sea ice, Himalayan -
Tibetan glaciers, and the Greenland Ice Sheet.
Experts have laid the blame for the increased desertification alternately at the feet of deforestation and overfarming, though some are now concerned that global warming could play a larger role in the near future — a consequence of the melting
Tibetan glaciers.
In South Asia, for example, black carbon disrupts annual monsoons and accelerates the melting of the Himalayan -
Tibetan glaciers, threatening water availability and food security for millions of people.
Posted in CLIMATE SCIENCE, Development and Climate Change, Flood, Glaciers, Weather Comments Off on Meltwater From
Tibetan Glaciers Floods Pastures
Subsequent research has affirmed that these particular
Tibetan glaciers [are indeed] shrinking rapidly (Nature, 2012).
Rivers such as the Indus, Jhelum, Ravi, Bias and Sutlej rivers, are shared between India and Pakistan (that have fought five wars since 1947) while melt - water from
the Tibetan glaciers supply both India and China (that fought a war over disputed Himalayan border territory in 1962).
Xu, B, J. Cao, J. Hansen, T. Yao, D.J. Joswia, N. Wang, G. Wu, M. Wang, H. Zhao, W. Yang, X. Liu, and J. He, 2009: Black soot and the survival of
Tibetan glaciers.
Tibetan glaciers have been melting at an accelerating rate over the past decade.
Thus it is inevitable that
some Tibetan glaciers advance over short periods, as has been reported.
The conclusion is that prospects for survival of
Tibetan glaciers can be much improved by reducing black soot emissions.
But overall,
Tibetan glaciers are retreating at an alarming rate.
Since melt water from
Tibetan glaciers replenishes many of Asia's major rivers — including the Indus, Ganges, Yellow, and Brahmaputra — such losses could have a profound impact on the billion people who rely on the rivers for fresh water.
Combined with improved agricultural and forestry practices and reduction of methane and black soot emissions, these actions would avoid demise of
the Tibetan glaciers.
They know
the Tibetan glaciers that feed their major rivers are melting.
Water vapor effect on climate measured New data says southern ocean still absorbing CO2 Ocean acidifying faster than expected Missing radiation signature points to thinning
Tibetan glaciers «Cash for Clunkers» to get -LSB-...]
(BTW, I just saw a paper in GRL [abstract below] indicating that in addition to the problem of water supply disruption from the lack of
a Tibetan glaciers cap, climate change makes the Indian subcontinent vulnerable to flipping into a stable dry state.
Personally I don't want to find out what the consequences may or may not be [disapearance of
Tibetan glaciers leading to starvation of billions, etc], but I think that we are a long way from deriving confident predictions of impact changes due to global warming from GCMs.
«Meltwater from
Tibetan glaciers floods pastures.»
Researchers measure historical trends of soot in a southeastern
Tibetan glacier and identify emission sources in a climate model
Not exact matches
Yesterday, the U.N. Environment Programme said the majority of
glaciers in the Hindu Kush - Himalayas and on the
Tibetan Plateau are retreating, with some exceptions.
The rivers that billions of Asians rely on to survive may not be dramatically affected by the meltdown of
glaciers in the
Tibetan Plateau, according to a new report
The Thompsons have drilled ice cores from
glaciers atop the most remote areas of the planet — the Chinese Himalayas, the
Tibetan Plateau, Kilimanjaro in Africa, and Papua Indonesia among others — to gauge Earth's past climate.
However, the measurements also bore some positive news: Some
glaciers in the central and north - western part of the
Tibetan Plateau have actually grown in mass.
Even China's efforts to combat those rising concentrations — in part by switching from burning coal to capturing the power latent in rivers like the Yangtze — falter in the face of global warming, as a result of less water in those rivers due to drought and the dwindling
glaciers of the
Tibetan Plateau.
By reconstructing their evolutionary history over the past 2 million years, including major climatic
glacier movements, geology (uplifting of the
Tibetan plateau) and retreats likely drove population isolation and demography.
The work, which appeared in Atmospheric Chemistry and Physics in June, shows that soot pollution on and above the Himalayan -
Tibetan Plateau area warms the region enough to contribute to earlier snowmelt and shrinking
glaciers.
Once the
glaciers of the
Tibetan Plateau are gone, the six major rivers running through China will dry up.
When I visited Everest in October I saw
glaciers in retreat, and heard
Tibetans worry about flooding and a reduction in water levels.
The Chinese Academy of Sciences — the country's top scientific body — has announced that the
glaciers of the
Tibetan plateau are vanishing so fast that they will be reduced by 50 per cent every decade.
An even worse example of this is the Chinese deciding to rely more and more on coal despite the probably - horrific consequences of losing the
Tibetan plateau
glaciers, although in that case they can probably be confident that it will be at least a generation before things start getting bad (and of course the Chinese plants are only part of the problem).
With regard to sea stand rise with 3C global warming, I opine that 15 meters, plus whatever contribution from the melting of the Patagonia ice caps,
Tibetan and other
glaciers, is it.
Apart from Xinjiang, most of these
glaciers are situated on the
Tibetan plateau.
Lonnie Thompson, senior research scientist at Ohio State University's Byrd Polar Research Center, and his colleague Paolo Gabrielli, have just been awarded a three - year $ 588,000 grant from the NSF's Division of Atmospheric and Geophysical Sciences «to assess the human impact on the chemical characteristics of the
glaciers in the Himalaya and the
Tibetan Plateau from -LSB-...]
«The Himalayan
Glaciers on the
Tibetan Plateau have been among the most affected by global warming.
«Fifty percent of the
glaciers were retreating from 1950 to 1980 in the
Tibetan region; that rose to 95 percent in the early 21st century,» said Tandong Yao, director of the Chinese Academy's Institute of
Tibetan Plateau Research.
Tags: atmospheric chemistry and physics, atmospheric scientist, climate change, co author, deluge, domino effect, ganges,
glaciers, global scale, greenhouse gases, india china, monsoon, pacific northwest, pacific northwest national lab, s
glacier, soot, strong winds, summer crops,
tibetan plateau, yangtze
Tags: brown cloud, climate consequences, desert stretches, disparate elements, dust layer, dusty land, goddard space flight, goddard space flight center, greenbelt md, himalayan
glaciers, indian subcontinent, industrial pollutants, natural elements, rapid retreat, solar radiation, space flight center, square kilometers, tallest mountains,
tibetan plateau, william lau
Bounded to the north by the
Tibetan Plateau, to the west by deserts, and to the south by a bowl - like basin teeming with people, the mountains hold 10,000
glaciers.
Though the
Tibetan earthquake was going to happen at some time, it is possible that changes in ice loading on Himalayan
glaciers, changes in water volume outflows in the annual Asian monsoon, and sea level rise adding pressure to the geological plates below coastlines — especially in low - lying Bangladesh — had an impact.
The idea that shrinking
glaciers on the
Tibetan Plateau could one day drive up food prices at U.S. supermarket checkout counters is yet another sign of how integrated our global civilization has become.
Mountain
glaciers are melting in the Andes, the Rocky Mountains, the Alps, and elsewhere, but nowhere does melting threaten world food security more than in the
glaciers of the Himalayas and on the
Tibetan Plateau that feed the major rivers of India and China.
Chinese government data show that the
glaciers on the
Tibetan Plateau that feed the Yellow and Yangtze Rivers are melting at a torrid pace.
Of these, the disappearance of
glaciers in the Himalayas and on the
Tibetan plateau threatens to shrink food supplies most sharply.
These effects are of particular concern in India and China, where a large ABC over the
Tibetan Plateau is contributing to the melting of
glaciers that supply the major rivers of Asia.
Mountain
glaciers in Europe, North America, South America, Africa, and the largest of them all in the Himalayan -
Tibetan region are retreating, some at alarming rates.
Can we close coal - fired power plants fast enough to save at least the larger
glaciers in the Himalayas and on the
Tibetan Plateau?
Nowhere is the melting more alarming than in the Himalayas and on the
Tibetan plateau where the ice melt from
glaciers sustains not only the dry - season flow of the Indus, Ganges, Yangtze, and Yellow rivers but also the irrigation systems that depend on them.
In 2006, a joint U.S. - Chinese team drilled four cores from the summit of Naimona» nyi, a large
glacier 6,050 meters (19,849 feet) high on the
Tibetan Plateau.