Comment Chapter Team Response Id Page Line Page Line 2257 2 0 0 0 0 Excellent Comprehensive and Rich Report
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SROCC Second Order Draft Government and Expert Review Comments - Chapter 2 Comment Chapter From From To To Comment Chapter Team Response id page line page line 2257 2 0 0 0 0 Excellent comprehensive and rich report. I have only few rather technical remarks. A more Taken into account – sentence included in permafrost section general recommendation relates to the new landscapes which are rapidli forming in deglaciating mountain areas and need comprehensive anticipation/modeling/treatment. This is an emerging research field (Haeberli, W. (2017): Integrative modelling and managing new landscapes and environments in de-glaciating mountain ranges: An emerging trans- disciplinary research field. Forestry Research and Engineering: International Journal 1(1). doi:10.15406/freij.2017.01.00005). This could be more strongly emphasized, for instance, in section 2.4 on page 47 an don page 5, line 53. Such new landscapes will be characterized by strong and long-lasting disequilibria, especially concerning slope stability, sediment cascades or eco-systems. One important factor thereby is the strongly different response time of cryosphere components: snow = almost immediate, mountain glaciers = years to decades, mountain permafrost =decades to centuries to even millennia. As an example, in many mountain chains, permafrost inside high peaks will probably continue to exist (far out of thermal equilibrium) when glaciers will have already long disappeared. [Wilfried Haeberli, Switzerland] 2259 2 0 0 0 0 The figures are interesting but rather overloaded and not easy to read and understand. Accepted - The figures have been revised to improve readability. [Wilfried Haeberli, Switzerland] 2415 2 0 0 0 It is puzzling to see that chapter authors have consciously chosen to ignore the pre- Rejected - Pre-industrial changes are not part of the government industrial, pre-Little-Ice-Age palaeoclimatic context. This is fully unacceptable and will approved outline of this section. AR6 will have more on that topic. significantly corrode robustness of this chapter. It is generally accepted wisdom that Here we focus on the recent changes, this is clearly indicated in present-day climate can only be understood in the context of pre-industrial natural climate Chapter 1 and in the introduction of Chapter 2. variability. By failing to mention pre-industrial late Holocene and Holocene climate, the chapter loses its basis its and interpretations remain uncalibrated. This is like building a house with weak foundations which eventually will collapse. I have recommended to include pre-industrial natural warm phases such as the Medeval Cimate Anomaly, Roman Warm Period and Holocene Thermal Maximum in my comments on the FOD. I am truely shocked to see that chapter authors have not even included most basic references such as Solomina et al. 2016 (doi: 10.1016/j.quascirev.2016.04.008) or Solomina et al. 2015 (doi: 10.1016/j.quascirev.2014.11.018) who have elaborated in detail on the pre-industrial high mountain glacial Holocene history. Please keep in mind that the review comments as well as your replies will be made public eventually and that your justification to ignore pre- industrial Holocene warm phases will be studied carefully. [Sebastian Luening, Portugal] 5175 2 0 0 0 Despite the extensive range of impacts described in this chapter there is little indication Taken into account - Additional figures have been added wherever given of the cocts of these and the resulting responses. [Debra Roberts and Durban possible for some huma sectors (hydropower, tourism), even if the Team, South Africa] evidence is often scattered. 5177 2 0 0 0 This chapter would benefit from the sort of impacts/responses summary table presented in Taken into account - The Supplementary tables provide regional Chapter 3 (pg 90-91) in order to pull the policy relevant material into clearer focus. [Debra evidence for relevant impacts and adaptation (2 different tables). Roberts and Durban Team, South Africa] This supports the corresponding figures. 5473 2 0 0 0 With the global warming trend rising, mountainous conditions are developing for farming and Noted population growth. [rashidian leila, Iran] 5477 2 0 0 0 study of climate change impact on snow cover; case study: Taleghan basin. Rccc 15- Taken into account - Additional references for Iran were Taken into 01280083 ; Manizheh Ezzati, Alireza Shokuhi- Mojtaba Noori - Faateme Karimi - Ahmad account for the Final Government Draft" Abrishamchi [rashidian leila, Iran] 5479 2 0 0 0 Climate change impact on trend and changing of snow fall ; Case study : Middle West of Taken into account - Additional references for Iran were Taken into Iran. Rccc 15-00560026 ; Oji Roohollah - Daavoudi Mahmoud [rashidian leila, Iran] account for the Final Government Draft" Do not Cite, Quote or Distribute Page 1 of 214 SROCC Second Order Draft Government and Expert Review Comments - Chapter 2 Comment Chapter From From To To Comment Chapter Team Response id page line page line 5481 2 0 0 0 Climate change impact on snow depth and its durability ; Case study ; Koohrang Station . - Taken into account - Additional references for Iran were Taken into rccc 15 -00530336 ; Ghatreh Saamani Saeed ; Ghatreh Saamani Merdad ; Nowroozi account for the Final Government Draft" Maesoomeh [rashidian leila, Iran] 5527 2 0 0 0 considering that With the global warming trend rising, mountainous conditions prepare for Taken into account - Agriculture is Taken into account in the report, farming and population growth, it's suggestede that the subject will be considered in the when there is a connection to past or future cryosphere changes. report. [Government of Iran, Iran] 5531 2 0 0 0 study of climate change impact on snow cover; case study: Taleghan basin. Rccc 15- Taken into account - Additional references for Iran were Taken into 01280083 ; Manizheh Ezzati, Alireza Shokuhi- Mojtaba Noori - Faateme Karimi - Ahmad account for the Final Government Draft" Abrishamchi [Government of Iran, Iran] 5533 2 0 0 0 Climate change impact on trend and changing of snow fall ; Case study : Middle West of Taken into account - Additional references for Iran were Taken into Iran. Rccc 15-00560026 ; Oji Roohollah - Daavoudi Mahmoud [Government of Iran, Iran] account for the Final Government Draft" 5535 2 0 0 0 Climate change impact on snow depth and its durability ; Case study ; Koohrang Station . - Taken into account - Additional references for Iran were Taken into rccc 15 -00530336 ; Ghatreh Saamani Saeed ; Ghatreh Saamani Merdad ; Nowroozi account for the Final Government Draft" Maesoomeh [Government of Iran, Iran] 10883 2 0 0 0 Excellent, what we were waiting for..... See comment for the SPM, could even tolerate more Taken into account - more socioeconomic data added. Only FAQ socio-economic data and information. FAQ (only one?) and case studies are a welcome was allotted for this chapter. addition. [otto otto simonett, Switzerland] 10885 2 0 0 0 The different target audience of the full report from the SPM may justify a higher complexity Accepted - many figures have been simplified of figures, although in general I believe that these should also in a more 'scientific' paper be understandable. My general impression is that most figures of chapter 2 are far too complex even for an advanced reader. [otto otto simonett, Switzerland] 10999 2 0 0 0 Consider including content about the expected changes in microbial diversity within Taken into account - though due to text limitations, this is included terrestrial mountain ecosystems. [Karen Cameron, United Kingdom (of Great Britain and as references in the impacts table in relation to glacier retreat. Northern Ireland)] 11723 2 0 0 0 Definition of mountain region and high mountain region shall be provided (may be separation Taken into account - However, to remain consistent also with other by defining elevation). High mountain region shall be again differentiated by definition into feedback and comments on a definiton for mountains, we have high mountain and high mountain Asia. Further, mountain region shall also be differented by focused on regions where glaciers, snow or permafrost are definition into mountain and mountain Asia. Degree of impact of climate change is different prominent features of the landscape, without a strict and in these region. The conclusion shall not be the average of degree of impact/drivers in quantitative demarcation. This is consistent with the scope defined these regions. The results shall be presented correspondingly in these regions separately. in the approved outlined for this Chapter. Althoug Climate change is global phenomenon, the policymaker wants to know the degree of impact in his/her region. [Maheswor shrestha, Nepal] 12061 2 0 0 0 Landslide and debris-flow related to the melting glacier are an important type of mountain Taken into account - however, this request falls beyond the disasters. So it is suggested to make relevant additions. At the same time, in spite of the mandate of the report to assess disasters specifically, since these fact that this chapter in part refers to the impact of climate change on glacial disasters, the manifest where natural hazards interact with other non-climate- report as a whole does not mention the disaster-driven mechanism or its potential future related factors and human dimensions that are not part of this developments. So it is suggested to make relevant additions. In addition, the report, which assessment. The relevant sections that deal with the issue of focuses much on the impact of warming on the balance of glacier mass, gives little natural hazards as a result of cryosphere change are already consideration to the impact of double increases of temperature and precipitation on the addressed in sections 2.3.2.1.1 Unstable slopes and landslides and stability of glaciers and the proneness to disasters. So it is suggested to make relevant responses to these imapcts under section 2.3.2.3. Disaster risk additions. [Government of China, China] reduction and adaptation to flood and landslide hazard 12761 2 0 0 0 Many sentences should be greatly simplified.