<figure><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221110141156/636d03419c7e80680e0a36c1jpeg.jpg" alt="" width="1400" height="1190"/><figcaption>Illustration: DIWAKAR CHETTRI</figcaption></figure>In 1763, Scottish inventor James Watt was given a steam engine to repair. Developed by Thomas Newcomen, it would turn water into steam to run a water pump. The Newcomen pump used the same chamber for heating and cooling steam, and was slow and consumed lots of coal. It was expensive.Dagogo Altraid in his book New Thinking: From Einstein to Artificial Intelligence, the Science and Technology That Transformed Our World tells us that Mr Watt conceptualised an improvement during a Sunday afternoon walk in Glasgow. He proposed a separate chamber that would condense the steam. It would improve efficiency and reduce cost.Subsequently his steam-run piston connected to levers and cogs would move wheels in locomotives, ships and textile factories. James Watt took a walk, and the world changed forever -- the first industrial revolution was set in motion.About eighty years later the mass extraction, processing and commercial use of petroleum to fuel these engines began in the United States. The second industrial revolution was on its way. The availability of petroleum products helped develop the internal combustion engine, improving mobility on a far greater scale than steam power – later revolutionising the use of automobiles, ships and aircraft.Energy generated from coal, petroleum, diesel and gas thus industrialised the West, and became the prime mover of its socio-economic system, and subsequently spread to every country in the world which followed the same development path.Human beings had unprecedented mobility, the world achieved progress, but use of fossil fuels over the next two centuries and half accumulated carbon dioxide in the atmosphere increasing its concentration from less than 300 parts per million (ppm) in the pre-industrial era to 418 ppm today. This and other greenhouse gases trapped more heat and amplified anthropogenic climate change.In the early 19th century scientists were already examining the relation between the sun, earth and atmosphere. French physicist Joseph Fournier in the 1820s postulated that the Earth's atmosphere might face a ‘greenhouse effect’. British physicist John Tyndal later explored this idea further, and in 1859 demonstrated that a greenhouse effect would trap the sun’s reflected radiation in the earth’s atmosphere – increasing the average surface temperature of the planet.The First World Climate Conference organised by the World Meteorological Organisation in 1979 had formally identified increased atmospheric concentrations of greenhouse gases as the leading cause of global warming. The <a href="https://www.nepalitimes.com/banner/un-climate-report-declares-planetary-emergency/" data-saferedirecturl="https://www.google.com/url?q=https://www.nepalitimes.com/banner/un-climate-report-declares-planetary-emergency/&amp;source=gmail&amp;ust=1632793832912000&amp;usg=AFQjCNG5KO1XmWfvCd3JQIreEIvlrvl09w">Intergovernmental Panel on Climate Change (IPCC)</a> established in 1988 to study climate change and its impact has been warning for the past three decades that a hotter planet posed a threat to humans and other life forms.It has been known for decades that a warming earth will disturb the water cycle resulting in frequent heavy precipitation, floods, and drought, cyclonic storms, and coastal inundation. Heat waves and forest fires would be more devastating. In fact, the IPCC’s Assessment Report 6 (AR6) issued in August 2021 reported that from 2011-2020 the global surface temperature was already ~1.1oC higher than the baseline of 1850-1900.The Paris Accord of 2015 aimed to limit average temperature rise from 1.5 to 2 oC  warmer compared to pre-industrial levels to minimise the risk of <a href="http://archive.nepalitimes.com/article/editorial/climate-climax,3651" data-saferedirecturl="https://www.google.com/url?q=http://archive.nepalitimes.com/article/editorial/climate-climax,3651&amp;source=gmail&amp;ust=1632793832912000&amp;usg=AFQjCNGg1f7MjDygQNSsOoABK_DhRH9UBw">a planetary climate disaster</a>. Member countries agreed to work on Nationally Determined Contributions (NDCs) that would set their own targets for reducing greenhouse gas emissions by cutting coal and petroleum use.Even these pledges will not meet the 1.5 to 2oC Paris target, warned the United Nations Framework Convention on Climate Change (UNFCCC) in a synthesis report on NDCs. In fact, at the current rate of emission reduction, global average temperature is unlikely to be limited to 2oC increase by 2050. The report warned that national emission reductions pledged in the NDCs should increase by an additional 80% if the target is to be met.If the current level of emission continues, by 2100 the world will be at least 2.7oC warmer. Earlier, the IPCC had predicted that the 1.5o C threshold would actually be exceeded in 2040. Sadly, institutional barriers, path dependencies, lack of actions, and denying of climate change science in developed countries act as barriers to faster decarbonisation.For Nepal, as elsewhere in the world, the loss and damage from the climate emergency is already a part of daily life. <a href="https://www.nepalitimes.com/banner/first-drought-then-downpour/" data-saferedirecturl="https://www.google.com/url?q=https://www.nepalitimes.com/banner/first-drought-then-downpour/&amp;source=gmail&amp;ust=1632793832912000&amp;usg=AFQjCNFpzE9obZKPOn8iozib-zgjtAvfKA">Droughts</a> leading to unprecedented <a href="https://www.nepalitimes.com/banner/wildfires-ravage-nepal-mountains/" data-saferedirecturl="https://www.google.com/url?q=https://www.nepalitimes.com/banner/wildfires-ravage-nepal-mountains/&amp;source=gmail&amp;ust=1632793832912000&amp;usg=AFQjCNFAZV0Kauf850haiih8DYv_r_QDxQ">wildfires</a>, record-breaking rainfall, <a href="https://www.nepalitimes.com/banner/disasters-in-nepal-come-in-waves/" data-saferedirecturl="https://www.google.com/url?q=https://www.nepalitimes.com/banner/disasters-in-nepal-come-in-waves/&amp;source=gmail&amp;ust=1632793832912000&amp;usg=AFQjCNG1DVkUqSSJ15kG7LZ_omJrvp0M0Q">extreme weather events</a>, <a href="https://www.nepalitimes.com/banner/on-thin-ice-in-the-khumbu/" data-saferedirecturl="https://www.google.com/url?q=https://www.nepalitimes.com/banner/on-thin-ice-in-the-khumbu/&amp;source=gmail&amp;ust=1632793832912000&amp;usg=AFQjCNGFcAtH18vGuvAx8RPbhAWSOV431Q">receding snowlines</a>, shrinking glaciers, and <a href="https://www.nepalitimes.com/opinion/nepals-silent-emergency-springs-going-dry/" data-saferedirecturl="https://www.google.com/url?q=https://www.nepalitimes.com/opinion/nepals-silent-emergency-springs-going-dry/&amp;source=gmail&amp;ust=1632793832912000&amp;usg=AFQjCNFsextCf2VRpjOw-ROgboe7cUZvKg">springs going dry.</a> In Glasgow, world leaders have to commit to drastic reductions in greenhouse gas emissions, and pledge help to countries like Nepal to cope with the climate crisis.It is indeed symbolic that the UN’ Climate Change summit (called COP26) in November is being held in Glasgow, the same city where James Watt took a walk during which he came up with the idea that made more efficient coal fired steam engine 258 years ago. Perhaps world leaders should also take a walk while in Glasgow to come up with an urgent plan to undo the planetary crisis unleashed by Watt’s steam engine. Time has run out.<a href="https://www.nepalitimes.com/opinion/nepals-silent-emergency-springs-going-dry/" data-saferedirecturl="https://www.google.com/url?q=https://www.nepalitimes.com/opinion/nepals-silent-emergency-springs-going-dry/&amp;source=gmail&amp;ust=1632793832912000&amp;usg=AFQjCNFsextCf2VRpjOw-ROgboe7cUZvKg">Ajaya Dixit</a> is Senior Advisor of Kathmandu based ISET-Nepal. He contributes this regular commentary Climate for Change in Nepali Times.

Ajaya Dixit

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Back to Glasgow, where it all began

<figure><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221110141128/636cfca39c7e80680e0a0b9djpeg.jpg" alt="" width="3000" height="900"/><figcaption>The receding Khumbu Glacier below Mt Everest, and Cholatse Lake in Nepal. Photo: ALTON C BYERS</figcaption></figure>Human activities are damaging the planet at an alarming and unprecedented rate. The latest <a href="https://www.ipcc.ch/report/ar6/wg1/#SPM" data-saferedirecturl="https://www.google.com/url?q=https://www.ipcc.ch/report/ar6/wg1/%23SPM&amp;source=gmail&amp;ust=1628763074514000&amp;usg=AFQjCNEuRmAKNU4DKxDTR6sZbkrleWAaAw">report</a> by the UN climate science body IPCC, released this week, lays out startling facts on global warming. The report acts as a stark reminder that inaction will exacerbate the climate-related impacts the world is already facing. It confirms that Earth’s temperature is higher now than it has ever been in the last 125,000 years.The world has already warmed on average by 1.1°C compared to pre-industrial times due to human induced climate change. Each of the last four decades has been successively warmer. As a consequence, climate extremes such as heat waves, extreme precipitation, droughts and storms are on the rise, <a href="https://www.nepalitimes.com/banner/disasters-in-nepal-come-in-waves/" data-saferedirecturl="https://www.google.com/url?q=https://www.nepalitimes.com/banner/disasters-in-nepal-come-in-waves/&amp;source=gmail&amp;ust=1628763074515000&amp;usg=AFQjCNFF4km5LNsqpgkHS40SXEP0XxKOCw">including in Nepal</a> where floods have already claimed about 100 lives just this year.<figure><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221110141128/636cfca59c7e80680e0a0b9ejpeg.jpg" alt="" width="640" height="572"><figcaption>Historical warming of the earth. Source: IPCC</figcaption></figure>Unprecedented pace of glacier retreatThere is no doubt that mountainous regions are at the forefront of climate impacts:  for example, high intensity rain and mountain slope instability can wash out roads and bridges, thereby affecting access to rural areas, and rapid change in mountain snow will have far reaching effects on both upstream and downstream.The IPCC report confirms that the rate of ice sheet loss increased by a factor of four in the last three decades. Through their climate warming greenhouse gas emissions, humans are the main cause of the global retreat of glaciers. The current rate of ice sheet loss, with almost all of the world’s glaciers retreating synchronously since the 1950s, has been unprecedented in at least the last 2,000 years.The unprecedented pace of glacier retreat at the global scale is more alarming in the Himalayas. Two years ago, the <a href="https://www.icimod.org/landmark-study-two-degree-temperature-rise-could-melt-half-of-glaciers-in-hindu-kush-himalaya-region-destabilizing-asias-rivers/" data-saferedirecturl="https://www.google.com/url?q=https://www.icimod.org/landmark-study-two-degree-temperature-rise-could-melt-half-of-glaciers-in-hindu-kush-himalaya-region-destabilizing-asias-rivers/&amp;source=gmail&amp;ust=1628763074515000&amp;usg=AFQjCNGt4zvQzrZY-rYUYDPjdo6l7e_Lrg">Hindu Kush Himalaya Assessment</a> report by ICIMOD confirmed that even if global warming is limited to 1.5°C, temperatures will remain at least 0.3°C higher in the Hindu Kush Himalayas (HKH), and at least 0.7°C higher in the northwest Himalaya and Karakoram regions of Pakistan. As a consequence, 36% of the glaciers in the region will be gone by 2100. And this is the “best case” scenario where the world manages to limit warming to 1.5°C and avoid the worst impacts of climate change.Climate change is also intensifying the water cycle and affecting rainfall patterns. The IPCC report confirms that the intensity and frequency of hot extremes, including heat waves, and heavy precipitation, as well as agricultural and ecological droughts continue to increase as temperatures rise. For South Asia including Nepal, the average precipitation as well as heavy rainfall events are projected to increase. This will result in more flooding and landslide events. All this will have far reaching consequences across the region with water-dependent energy sectors and water-intensive agricultural systems.<figure><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221110141128/636cfca89c7e80680e0a0b9fjpeg.jpg" alt="" width="640" height="315"><figcaption>Projected global temperature rise under the intermediate, high and very high GHG emission scenarios considered. Source: IPCC</figcaption></figure>Highlands to Islands linkagesThe impacts of melting glaciers are not only limited to the mountainous regions. Rapid ice sheet melt could lead to catastrophic sea level rise even before the end of the century. As outlined in the IPCC report, the global mean sea level has already risen by 20 cm and will continue to do so for thousands of years.The IPCC report confirmed that combined ice sheet and glacier mass loss contributed to 42% of this global mean sea level rise from 2006 to 2018.The report states with greater certainty than previous reports that mountain and polar glaciers will continue melting for decades and centuries to come. Continued ice sheet loss will also release greenhouse gases into the atmosphere -- as temperature rises and permafrost thaws, it decomposes and emits carbon, further amplifying climate change that is causing it to melt.Rising temperatures could melt most mountain glaciers and add more to the sea level rise, both leading to the extinction of small islands and mountain habitats. This cycle that binds the highlands to the islands demonstrates the need for collaboration between mountainous and island countries in the international climate change discourse.  Such collaboration could help to amplify the voice of most vulnerable nations calling for the major emitters to take urgent actions to reduce emissions.<figure><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/20221110141128/636cfca99c7e80680e0a0ba0jpeg.jpg" alt="" width="640" height="546"><figcaption>Future annual emissions of CO₂ under the five scenarios SSP1-1.9, SSP1-2.6, SSP2-4.5, SSP3-7.0 and SSP5-8.5. Source: IPCC</figcaption></figure>Path to followThe IPCC report clearly shows the grave risks of exceeding 1.5°C above pre-industrial levels – an upper limit of warming which the global community has agreed to in the Paris Agreement. Yet, from the perspective of a mountainous country, even a 1.5°C temperature rise is too much, which will lead to one third of the Himalayan glaciers to disappear with devastating consequences for the region.All decisions from now on, therefore, must be guided by the fact that every extra tonne of carbon dioxide and other greenhouse gases will lead to more warming and any increase in warming will lead to devastating impacts on lives, livelihoods and ecosystems across the world.The most vulnerable countries, including mountainous areas, are already at the forefront of fatal climate and weather disruptions. These countries with limited resources will continuously require international support to combat climate change, and at a scale well beyond current levels. The IPCC report must act as a wakeup call for all governments, in particular the biggest polluters such as the G7 and G20. They must take urgent action in response to the climate emergency, starting by adopting robust and bold 2030 climate commitments by the next UN climate summit - the <a href="https://unfccc.int/process-and-meetings/conferences/glasgow-climate-change-conference" data-saferedirecturl="https://www.google.com/url?q=https://unfccc.int/process-and-meetings/conferences/glasgow-climate-change-conference&amp;source=gmail&amp;ust=1628763074515000&amp;usg=AFQjCNHXeAsyEsnaY7moQlGAVCE0LJc8zA">COP26</a> - in November.Manjeet Dhakal is Head of LDC Support Team at Climate Analytics and serves as an Advisor to the Chair of the Least Developed Countries Group at the multilateral process of the UNFCCC. He provides scientific, strategic and high-level climate leadership support for the LDCs’ in climate change UN-related processes.

Mountainous regions face catastrophic impacts without urgent climate action

[caption id="attachment_54080" align="alignnone" width="900"]<img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/2022110915110/636bb2b09c7e80680e07baf9jpeg.jpg" alt="" width="900" height="501"/> Panoramic view of Manang Village and the Gangapurna and Annapurna III Glaciers that have retreated dramatically since 1980. Photo: SolundirWhen Swiss geologist Toni Hagen arrived in Nepal, the Ranas were still ruling the country. Throughout the 1950s, Hagen traversed the country on foot from east to west, from north to south, examining rock strata to probe the orogenesis of the Himalaya.Along the way, he took thousands of photographs and film clips that remain a <a href="https://www.nepalitimes.com/banner/time-capsule-of-kathmandu/">valuable visual archive of a time</a> when Nepal was emerging from historical isolation. Today, the photographs are a treasure trove for climate researchers to measure the extent of <a href="https://www.nepalitimes.com/banner/human-face-of-a-himalayan-climate-crisis/">glacial retreat in the Himalaya</a>.[caption id="attachment_54105" align="alignleft" width="250"]<img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/2022110915110/636bb2b39c7e80680e07bafajpeg.jpg" alt="" width="250" height="248"> Shalik Ram Sigdel, the Nepali scientist who conducted the study of melting glaciers and new forest cover in Manang.Repeat photography has allowed Nepali climate scientists like <a href="https://www.researchgate.net/profile/Shalik_Sigdel" data-saferedirecturl="https://www.google.com/url?q=https://www.researchgate.net/profile/Shalik_Sigdel&amp;source=gmail&amp;ust=1599194307732000&amp;usg=AFQjCNGLU7cCjeTpgUDbnMntpnJqDDySKg">Shalik Ram Sigdel</a> of the Institute of Tibetan Plateau Research at the Chinese Academy of Sciences to plot the rapidity of Himalayan melting due to global warming in the past century.When Toni Hagen trekked through Manang in 1957, he climbed a slope above the village to take photographs of the northern flank of <a href="https://www.nepalitimes.com/banner/the-abcs-of-a-winter-trek-in-nepal/">the Annapurnas</a>. Even at that time, the Gangapurna Glacier was already debris-covered, meaning that it had lost most of its surface ice.But when Sigdel visited the area and compared it to more recent photographs, he found the glacier snout had receded 900m up the mountain, leaving a lake at its terminus bracketed by sharply defined lateral moraines. The Marsyangdi River has found a way around this feature.<img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/2022110915110/636bb2b49c7e80680e07bafbjpeg.jpg" alt="" width="1196" height="778"><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/2022110915110/636bb2b79c7e80680e07bafcjpeg.jpg" alt="" width="1200" height="786">Toni Hagen’s photograph in 1957 of the debris-covered Gangapurna Glacier termius with a few supraglacial ponds, and the same view in 2010 by Nabin Baral showing the growing glacial lake and vegetation on the terminal moraine. Photos: Toni Hagen and Nabin Baral/<a href="http://thethirdpole.net/" data-saferedirecturl="https://www.google.com/url?q=http://thethirdpole.net&amp;source=gmail&amp;ust=1599194307733000&amp;usg=AFQjCNH20EkAK7tiS1QEO-2v8kjshrdqFw">thethirdpole.net</a><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/2022110915110/636bb2ba9c7e80680e07bafdjpeg.jpg" alt="" width="1199" height="768"><img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/2022110915110/636bb2bc9c7e80680e07bafejpeg.jpg" alt="" width="1199" height="797">Before-and-after photographs by Nabin Baral from Manang village of the Gangapurna Glacier and the glacial lake in 2007 and 2018 showing the dramatic retreat of the glacier and increased forest cover on the slopes. Photos: Nabin Baral/<a href="http://thethirdpole.net/" data-saferedirecturl="https://www.google.com/url?q=http://thethirdpole.net&amp;source=gmail&amp;ust=1599194307733000&amp;usg=AFQjCNH20EkAK7tiS1QEO-2v8kjshrdqFw">thethirdpole.net</a>In a paper titled Retreating Glacier and Advancing Forest Over the Past 200 Years in Central Himalayas published on last week in the <a href="https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JG005751" data-saferedirecturl="https://www.google.com/url?q=https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020JG005751&amp;source=gmail&amp;ust=1599194307732000&amp;usg=AFQjCNH_R19ErZEJGj-6qI6IxagxD87Z8w">Journal of Geophysical Research - Biogeosciences</a>, Sigdel with co-authors <a href="https://agupubs.onlinelibrary.wiley.com/action/doSearch?ContribAuthorStored=Muhammad%2C+Sher" data-saferedirecturl="https://www.google.com/url?q=https://agupubs.onlinelibrary.wiley.com/action/doSearch?ContribAuthorStored%3DMuhammad%252C%2BSher&amp;source=gmail&amp;ust=1599194307732000&amp;usg=AFQjCNFez6UmtBUzucmh0dOKYcsDUeIvWA">Sher Muhammad</a> of ICIMOD, <a href="https://agupubs.onlinelibrary.wiley.com/action/doSearch?ContribAuthorStored=Zhang%2C+Hui" data-saferedirecturl="https://www.google.com/url?q=https://agupubs.onlinelibrary.wiley.com/action/doSearch?ContribAuthorStored%3DZhang%252C%2BHui&amp;source=gmail&amp;ust=1599194307732000&amp;usg=AFQjCNFRmO-B5dlg03-1zEr0mvuMYO6YYA">Hui Zhang</a>, <a href="https://agupubs.onlinelibrary.wiley.com/action/doSearch?ContribAuthorStored=Zhu%2C+Haifeng" data-saferedirecturl="https://www.google.com/url?q=https://agupubs.onlinelibrary.wiley.com/action/doSearch?ContribAuthorStored%3DZhu%252C%2BHaifeng&amp;source=gmail&amp;ust=1599194307733000&amp;usg=AFQjCNH8qC5kAyRJfSST0IRACWK8reH1mw">Haifeng Zhu</a> and <a href="https://agupubs.onlinelibrary.wiley.com/action/doSearch?ContribAuthorStored=Liang%2C+Eryuan" data-saferedirecturl="https://www.google.com/url?q=https://agupubs.onlinelibrary.wiley.com/action/doSearch?ContribAuthorStored%3DLiang%252C%2BEryuan&amp;source=gmail&amp;ust=1599194307733000&amp;usg=AFQjCNEHCDgbGGXh_niT1k2YRRv-DKelwA">Eryuan Liang</a> present data on the analysis of glacial debris deposits and tree-rings on the Gangapurna and Annapurna III glaciers in Manang.[caption id="attachment_54081" align="alignright" width="600"]<img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/2022110915110/636bb2bf9c7e80680e07baffjpeg.jpg" alt="" width="600" height="375"> Google Earth images (south is up) of the Annapurna III Glacier (left) and the Gangapurna Glacier (right).The paper presents the first detailed evidence of <a href="https://www.nepalitimes.com/banner/the-third-pole-is-warming-faster-than-expected/">fluctuations in Himalayan glaciers</a> over the past 200 years, and concludes that snowlines have been rising and forests advancing higher, and they did so in spurts since 1790s with the process intensifying since 1980.While <a href="https://www.nepalitimes.com/banner/tracing-past-glacial-floods-in-kangchenjunga/">glaciers have been shrinking and snowlines have been naturally receding</a> ever since the Last Glacial Period 12,000 years ago and the Little Ice Age 700 years ago, this process has amplified with fossil fuel burning after the Industrial Revolution.The researchers used remote sensing satellite imagery and field research to find that as the Gangapurna and Annapurna III glaciers shrank and receded, birch, pine and juniper have been moving up the mountain since 1808.For instance, in 1988 the Gangapurna Glacier was 9km long and 17.74km2 in area, and by October 2019 its length had receded to 8.05km and area was down to 17.5km2. They also found that the thickness of the ice in the glaciers had also shrunk considerably.“Just in the past 60 years, the Gangapurna glacier has receded by more than 900m,” Sigdel said in an interview. “And the speed at which they are receding has accelerated.”[caption id="attachment_54098" align="alignleft" width="500"]<img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/2022110915110/636bb2c29c7e80680e07bb00jpeg.jpg" alt="" width="500" height="515"> Satellite imagery of the Gangapurna Glacier (top) and the Annapurna III Glacier in 1988, 2008 and 2019 showing that the rate of glacial retreat is accelerating.Indeed, the paper says that while the length of the Gangapurna Glacier reduced by 386m at 17.5m per year between 1957 to 1979, the speed picked up to 24m per year from 1979 to 2016 – receding by a full 903m in that time. The Annnapurna III Glacier receded at a slower pace and was smaller by 500m in the past 65 years due to the different gradient and size of the catchment.As the ice melted, vegetation started creeping up the mountains. Sigdel, who specialises in understanding treeline response to a <a href="https://www.nepalitimes.com/banner/a-terrifying-assessment-of-himalayan-melting/">changing climate in the Himalaya</a>, examined tree-rings and the vegetation that have colonised the moraines in the past decades.As shown in the before-and-after photographs of Toni Hagen’s images as well as through remote-sensing data, older moraines and those that were deposited after the Little Ice Age are already covered by dense forest, presenting evidence of forests replacing glaciers in the Himalaya.[caption id="attachment_54082" align="alignnone" width="1000"]<img src="https://superdesk-pro-c.s3.amazonaws.com/sd-nepalitimes/2022110915110/636bb2c59c7e80680e07bb01jpeg.jpg" alt="" width="1000" height="882">Repeat photography of the Gangapurna Glacier terminus in 1957 by Swiss geologist Toni Hagen, in 1979 by Czech photographer Zdeněk Thoma. And a view of the glacier from Manang village taken by Zdeněk Thoma in 1979 and the same view in 2016. Contour map of Upper Manang showing the location of the glacier terminus in those years.Being darker, the forests also absorb more sunlight than snowfields that earlier reflected light, and together with transpiration, this feedback loop in turn could amplify <a href="https://www.nepalitimes.com/opinion/climate-for-change/the-great-himalayan-thaw/">the warming trend in the Himalaya</a>, the paper concludes.While the warming may favour timber and agriculture production in Nepal, Sigdel says they threaten the dry season water flow in Himalayan rivers that will have consequences downstream.He adds: “Our research confirms that the climate crisis has been seriously impacting water resources in the Himalaya. The Gangapurna and Annpurna III glaciers feed the Marsyangdi River, and their melting will affect the entire basin, endangering water supply and affecting hydropower generation and irrigation downstream.”

Forests replace glaciers in the Himalaya

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Mountainous regions face catastrophic impacts without urgent climate action

Forests replace glaciers in the Himalaya