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Coal exit benefits outweigh its costs
23/03/2020 - Coal combustion is not only the single most important source of CO2, accounting for more than a third of global emissions, but also a major contributor to detrimental effects on public health and biodiversity. Yet, globally phasing out coal remains one of the hardest political nuts to crack. New computer simulations by an international team of researchers are now providing robust economic arguments for why it is worth the effort: For once, their simulations show that the world cannot stay below the 2 degrees limit if we continue to burn coal. Second, the benefits of phasing out coal clearly outweigh the costs. Third, those benefits occur mostly locally and short-term, which make them useful for policy makers.
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Mix it: Policy combination needed to achieve climate targets along with sustainable development goals
06/20/2018 - A broad combination of policies might be best suited to help achieve both climate stabilization targets as well as most of the UN Sustainable Development Goals. These policies reach from straightforward CO2 pricing to regulation of water and forest protection, to lifestyle changes such as eating less meat, a new study shows. The scientists highlight the complex interplay between the different targets. A policy focused only on CO2 pricing would cost the least, they show, but would likely trigger substantial land-use changes.
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Stock-take 2018: Rapid emissions reductions would keep CO2 removal and costs in check
03/29/2018 - Rapid greenhouse-gas emissions reductions are needed if governments want to keep in check both the costs of the transition towards climate stabilization and the amount of removing already emitted CO2 from the atmosphere. To this end, emissions in 2030 would need to be at least 20 percent below what countries have pledged under the Paris climate agreement, a new study finds – an insight that is directly relevant for the global stock-take scheduled for the UN climate summit in Poland later this year. Removing CO2 from the atmosphere through technical methods including carbon capture and underground storage (CCS) or increased use of plants to suck up CO2 comes with a number of risks and uncertainties, and hence the interest of limiting them.
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Reports of coal’s terminal decline are premature
02/07/2018 - While less new coal-fired power plants are now being built in China and India, the planned expansion in the use of coal in fast-growing emerging economies, such as Turkey, Indonesia and Vietnam, will in part cancel out the reduction. Only if the countries of the world actively counteract this trend, they can achieve the climate goals agreed in the Paris Agreement. These are the results of the study “Reports of coal’s terminal decline may be exaggerated,” authored by researchers from the Potsdam Institute on Climate Impact Research (PIK) and the Mercator Research Institute on Global Commons and Climate Change (MCC), published in the journal Environmental Research Letters
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