scholarly journals Supplementary material to "A probabilistic framework for quantifying the role of anthropogenic climate change in marine-terminating glacier retreats"

Author(s):  
John Erich Christian ◽  
Alexander A. Robel ◽  
Ginny Catania
2021 ◽  
Vol 118 (7) ◽  
pp. e2013284118
Author(s):  
William R. L. Anderegg ◽  
John T. Abatzoglou ◽  
Leander D. L. Anderegg ◽  
Leonard Bielory ◽  
Patrick L. Kinney ◽  
...  

Airborne pollen has major respiratory health impacts and anthropogenic climate change may increase pollen concentrations and extend pollen seasons. While greenhouse and field studies indicate that pollen concentrations are correlated with temperature, a formal detection and attribution of the role of anthropogenic climate change in continental pollen seasons is urgently needed. Here, we use long-term pollen data from 60 North American stations from 1990 to 2018, spanning 821 site-years of data, and Earth system model simulations to quantify the role of human-caused climate change in continental patterns in pollen concentrations. We find widespread advances and lengthening of pollen seasons (+20 d) and increases in pollen concentrations (+21%) across North America, which are strongly coupled to observed warming. Human forcing of the climate system contributed ∼50% (interquartile range: 19–84%) of the trend in pollen seasons and ∼8% (4–14%) of the trend in pollen concentrations. Our results reveal that anthropogenic climate change has already exacerbated pollen seasons in the past three decades with attendant deleterious effects on respiratory health.


2020 ◽  
Vol 101 (1) ◽  
pp. S53-S58 ◽  
Author(s):  
Richard L. Thoman ◽  
Uma S. Bhatt ◽  
Peter A. Bieniek ◽  
Brian R. Brettschneider ◽  
Michael Brubaker ◽  
...  

2016 ◽  
Vol 97 (12) ◽  
pp. S14-S18 ◽  
Author(s):  
James L. Partain ◽  
Sharon Alden ◽  
Heidi Strader ◽  
Uma S. Bhatt ◽  
Peter A. Bieniek ◽  
...  

2013 ◽  
Vol 94 (11) ◽  
pp. 1707-1713 ◽  
Author(s):  
Peter Rudiak-Gould

With an eye toward developing more effective climate change education, social scientists have attempted to diagnose the reasons for lingering public skepticism of anthropogenic climate change. But rarely is the question addressed with the benefit of cross-cultural research. Geographer Simon Donner has demonstrated the utility of such an approach: drawing on a vast ethnographic and historical record, it is possible to surmise to what extent anthropogenic climate change skepticism stems from panhuman cognitive habits versus culturally and historically specific circumstances, with deep consequences back at home for climate education and citizen–climatologist dialogue. While building from this method, this article departs from Donner's reading of the ethnographic record as demonstrating a cross-culturally pervasive human intuition that the weather is beyond human influence, arguing instead for the role of culturally specific commitments such as the distinction between nature and society, “just world” belief, faith in progress, and system justification. Various climate change communication strategies based upon these alternate reasons for skepticism are suggested, and ultimately it is argued that the ideologically fraught nature of these beliefs takes the matter beyond the realm of “science education” into the arena of democratic dialogue.


2020 ◽  
Vol 2 (1) ◽  
pp. 124-136
Author(s):  
Federico Andreoni

Anthropogenic climate change (i.e., climate change generated by human activities) requires solutions that are grounded in both thoughtful analysis and emotional responses, promoting the creation of social bonding and the development of a common desire to implement changes in our personal lives and society at large. In this article, I use a biopsychosocial approach – an approach that takes into account biological, psychological, and socio-environmental factors – to study the role of music in eliciting emotions and enhancing social bonding. This approach will allow me to contextualize the role of music within the findings of current evolutionary theories of music, that is music theories that study the evolutionary function of music and show that music’s ability to unite people in the fight against climate change stems from its evolutionary role as a survival mechanism.


2022 ◽  
Author(s):  
John Erich Christian ◽  
Alexander A. Robel ◽  
Ginny Catania

Abstract. Many marine-terminating outlet glaciers have retreated rapidly in recent decades, but these changes have not been formally attributed to anthropogenic climate change. A key challenge for such an attribution assessment is that if glacier termini are sufficiently perturbed from bathymetric highs, ice-dynamic feedbacks can cause rapid retreat even without further climate forcing. In the presence of internal climate variability, attribution thus depends on understanding whether (or how frequently) these rapid retreats could be triggered by climatic noise alone. Our simulations with idealized glaciers show that in a noisy climate, rapid retreat is a stochastic phenomenon. We therefore propose a probabilistic approach to attribution and present a framework for analysis that uses ensembles of many simulations with independent realizations of random climate variability. Synthetic experiments show that century-scale climate trends substantially increase the likelihood of rapid glacier retreat. This effect depends on the timescales over which ice dynamics integrate forcing. For a population of synthetic glaciers with different topographies, we find that external trends increase the number of large retreats triggered within the population, offering a metric for regional attribution. Our analyses suggest that formal attribution studies are tractable and should be further pursued to clarify the human role in recent ice-sheet change. We emphasize that early-industrial-era constraints on glacier and climate state are likely to be crucial for such studies.


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