Greening extractivism: Environmental discourses and resource governance in the ‘Lithium Triangle’

The lithium extractive industry is expanding, as technological and economic shifts associated with climate change mitigation goals drive global demand for lithium-ion batteries. This article explores the case of the ‘Lithium Triangle’, a region of Latin America (spanning Bolivia, Chile and Argentina) that contains the world’s largest reserves, and where environmental conflicts associated with lithium mining have proliferated. Emphasising the centrality of discourse in resource governance, we analyse the discursive strategies employed by institutional actors seeking to promote and render acceptable lithium extraction in the region. We argue that such strategies reproduce imaginaries of prosperity and modernisation long attached to oil and mineral wealth, while at the same time introducing a novel association of mining with high-tech industries, ‘green jobs’ and ‘climate-friendly’ extraction, seeking to obscure the social and ecological costs of lithium production. This inaugurates an era of ‘green extractivism’, whereby intensive resource exploitation is framed not only as compatible with climate change, but indeed as necessary to its mitigation. Our findings contribute to ongoing conversations regarding post-fossil fuel ‘transitions’, by highlighting the contradictory character of mitigation strategies that rely on mineral-intensive development

A rank-one Update Method for Efficient Processing of Interconnect Parasitics in Timing Analysis

In this paper we presen t a rank-one update method for updating reduced-order models of interconnect parasitics when driv e resistances or load capacitances change, as commonly occurs during timing analysis. These rank-one updates are extremely inexpensive, do not require reexamining the original in terconnect netw ork, and most importantly are provably equivalent to rereducing the original netw ork. This abstract con tains the proof only for the case of varying the driver resistance, but examples are given to sho w that the exactness holds more generally. In particular, a cross-talk case is examined where the conductance matrix is singular

Behavioral Synthesis Methodology for HDL-Based Specification and Validation

This paper describes a HDL synthesis based design methodology that supports user adoption of behavioral-level synthesis into normal design practices. The use of these techniques increases understanding of the HDL descriptions before synthesis, and makes the comparison of pre- and post-synthesis design behavior through simulation much more direct. This increases user confidence that the specification does what the user wants, i.e. that the synthesized design matches the specification in the ways that are important to the user. At the same time, the methodology gives the user a powerful set of tools to specify complex interface timing, while preserving a user's ability to delegate decision-making authority to software in those cases where the user does not wish to restrict the options available to the synthesis algorithms. 1.0 Overview This paper describes a synthesis methodology that uses high-level synthesis (HLS) of behavioral hardware-description language (HDL) descriptions. HLS h..

Visions of the Role of Walking and Cycling in 2030

This paper reports on research being undertaken as part of the 3 year Engineering and Physical Sciences Research Council (EPSRC) funded project which seeks to examine ways in which more people might be encouraged to walk and cycle in the future, what steps are needed to support this potential increase in walking and cycling and how to improve the experience for those who already use these modes. Walking and cycling can make a considerable contribution to sustainable transport goals, building healthier and more sociable communities and contributing to traffic reduction and lower carbon emissions. The amount of walking and cycling in Britain has declined over the long term and research suggests that there are major obstacles to prevent people from using these modes. There have been many national and local initiatives to promote walking and cycling but without a long term vision and consistent strategy it is difficult to see how a significant change may be achieved. The time is now right to examine the means by which such a fundamental change both in the quantity of walking and cycling, and in the quality of the experience can be achieved, which goes well beyond continuation of existing trends. The research uses innovative methodologies supported by visualisation software to help users understand how futures might appear, uses modelling techniques which examine narrative and storylines to understand how different futures might evolve, and utilizes a range of social research methods to explore how different futures might affect individual lifestyles and to evaluate impacts on society. The paper will describe the approach adopted in the project and outline the initial visions developed