Reducing greenhouse gas emissions has generally been approached through demand-side initiatives, yet there are increasing calls for supply-side interventions to curtail fossil fuel production. Pursuing energy transition through supply-side constraints would have major geopolitical and economic consequences. Depending on the criteria and instruments applied, supply cuts for fossil fuels could drastically reduce and reorient major financial flows and reshape the spatiality of energy production and consumption. Building on debates about just transitions and supply constraints, we provide a survey of emerging interventions targeting the supply of, rather than the demand for, fossil fuels. We articulate four theories of justice and criteria to prioritize cuts among fossil fuel producers, including with regard to carbon intensity, production costs, affordability, developmental efficiency and support for climate change action. We then examine seven major supply constraint instruments, their effectiveness and possible pathways to supply cuts in the coal, oil and gas sectors. We suggest that supply cuts both reflect and offer purposeful political spaces of interventions towards a ‘just’ transition away from fossil fuel production.

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This paper explores how 'ice' is woven into the spaces and practices of the state in Norway and Canada and, specifically, how representations of the sea ice edge become political agents in that process. We focus in particular on how these states have used science to 'map' sea ice -both graphically and legally -over the past decades. This culminated with two maps produced in 2015, a Norwegian map that moved the Arctic sea-ice edge 70 km northward and a Canadian map that moved it 200 km southward. Using the maps and their genealogies to explore how designations of sea ice are entangled with political objectives (oil drilling in Norway, sovereignty claims in Canada), we place the maps within the more general tendency of states to assign fixed categories to portions of the earth's surface and define distinct lines between them. We propose that the production of static ontologies through cartographic representations becomes particularly problematic in an icy environment of extraordinary temporal and spatial dynamism, where complex ocean-atmospheric processes and their biogeographic impacts are reduced to lines on a map.

A climate-positive COVID-19 recovery can accelerate the energy transition away from fossil fuels. Yet, current assessments of recovery stimulus programs suggest that the world is more likely to take on a 'dirty' recovery path out of the pandemic than a 'green' one. Such a path will postpone climate action and entrench fossil fuel dependence. To change course, fossil fuel producers have to get on board. For this, cooperative international efforts mobilizing both fossil fuel consumers and producers need to promote 'just transition' policies that increase support for a green shift among fossil fuel companies and producing countries, including fossil fuel exporters. In turn, fossil fuel producers should leverage the opportunity of large stimulus packages to reduce their fossil fuel production dependence and increase their contribution to accelerating an energy transition through supply-side measures. A combination of 'green' investments and 'just' transition reforms could help enroll fossil fuel producers into a climate-friendly post-COVID recovery.

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