Surviving Collapse

Author(s):  
Christina Ergas

As environmental crises loom, this book makes an argument for radical changes in the ways in which people live in order to stave off a dystopian future. A possible way forward is radical sustainable development, which emphasizes environmental and social justice concerns that are at once transformative, or egalitarian toward total liberation, and regenerative, or restorative to heal the health of people and the planet. Radical sustainability is distinguished from weak sustainability—a critique of the neoliberal, sustainable development project that, in practice, prioritizes economic growth over people and the planet—using theories from ecofeminist, environmental justice, and postcolonial scholars. The prevailing notion of sustainable development has remained ineffective at reducing environmental degradation and social inequalities. To gauge possible solutions to these problems, the book examines two alternative, community-scale, socioecological models of development with small environmental footprints and more egalitarian social practices. Methods employed are qualitative, cross-national, and comparative. The cases are an urban ecovillage in the Pacific Northwest, United States and a Cuban urban farm in Havana. These cases are important reminders that elegant, low-cost solutions already exist for environmental harm mitigation as well as social equity and adaptation. Findings highlight that each case uses community-oriented, low-tech practices and integrates ancestral, Indigenous, and local ecological knowledges. They prioritize social and ecological efficiency and subsume economic rationality towards those ends. While neither is a panacea, both provide examples for how communities can move toward stronger forms of sustainable development and empower readers to imagine, and possibly build, more resilient futures.

2D Materials ◽  
2021 ◽  
Author(s):  
Jose Munuera ◽  
L. Britnell ◽  
C. Santoro ◽  
R. Cuéllar-Franca ◽  
Cinzia Casiraghi

Abstract Advanced materials such as graphene and the family of 2-dimensional (2D) crystals are very attractive because of the myriad of applications that could be developed based on their outstanding properties. However, as soon as material development reaches enough maturity for production to be scaled up and to enter the market within products, it is crucial to place the technology in the context of possible risks to economic well-being, social equity and environmental harm. This review aims at highlighting the current state of art on sustainable development of graphene-based materials and related environmental impact assessment studies using life cycle assessment. We show that sustainable development has focused mostly on the use of waste or low cost materials as precursors. However, the findings from relevant life cycle assessment studies reveals the limits of this approach, which does not take into account that waste recycling is often very energy intensive. We provide an overview on the life cycle environmental impact assessment, with a focus of global warming potential and energy demand, carried out on different graphene productions methods for specific applications, ranging from composites to electronics. Finally, an outlook is given focussing on the comparison of the different production routes and the results from the life cycle assessment.


Plant Disease ◽  
2016 ◽  
Vol 100 (3) ◽  
pp. 640-644
Author(s):  
Patricia A. Okubara ◽  
Natalie Leston ◽  
Ute Micknass ◽  
Karl-Heinz Kogel ◽  
Jafargholi Imani

Rhizoctonia solani AG8, causal agent of Rhizoctonia root rot and bare patch in dryland cereal production systems of the Pacific Northwest United States and Australia, reduces yields in a wide range of crops. Disease is not consistently controlled by available management practices, so genetic resistance would be a desirable resource for growers. In this report, we describe three rapid and low-cost assays for R. solani AG8 resistance in wheat and barley, with the view of facilitating screens for genetic resistance in these hosts. The first assay uses 50-ml conical centrifuge tubes containing soil infested with R. solani AG8 on a substrate of ground oats. The second assay uses roots of 3-day-old seedlings directly coated with infested ground oats, followed by incubation in plastic dishes. The third assay, suitable for barley, uses whole infested oat kernels in 50-ml tubes. Symptoms are quantified on the bases of root fresh weight and total root length at 7 and 3 days for the tube and coating assays, respectively. Each of the assays show the same disease differential between susceptible and partially resistant wheat genotypes. The assays can be conducted in the laboratory, growth chamber, or greenhouse.


Plant Disease ◽  
2016 ◽  
Vol 100 (8) ◽  
pp. 1599-1605 ◽  
Author(s):  
Claudia Probst ◽  
Mark E. Nelson ◽  
Gary G. Grove ◽  
Megan C. Twomey ◽  
David H. Gent

Podosphaera macularis, the causal agent of hop powdery mildew, is a recurrent threat to hops in the Pacific Northwest because of the potential to reduce cone yield and quality. Early-season pruning is a common practice in hop production for horticultural reasons. Studies were conducted over a 3-year period in a commercial hop yard to quantify the effect of pruning method and timing on disease development, yield, and cone quality factors. A 4-week delay in pruning reduced the incidence of leaves with powdery mildew from 46 to 10% and cones from 9 to 1%, with the specific effect being season dependent. Pruning using chemical desiccants rather than by mechanical means had similar effects on disease levels on leaves. On cones, though, chemical pruning had a small but significant reduction in the incidence of powdery mildew compared with mechanical pruning. Cone yield, levels of bittering-acids, and color were not negatively affected in any individual year or cumulatively over three seasons when pruning treatments were applied repeatedly to the same plots during the study period. Delayed pruning may offer a low-cost means of reducing both the incidence of powdery mildew and early-season fungicide inputs in certain cultivars.


2019 ◽  
Vol 39 (4) ◽  
pp. 452
Author(s):  
Margaret H. Massie ◽  
Todd M. Wilson ◽  
Anita T. Morzillo ◽  
Emilie B. Henderson

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