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| 2. |
- Wagner, Gernot, et al.
(författare)
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Energy policy: Push Renewables to spur carbon pricing
- 2015
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Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 525:7567, s. 27-29
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Putting a price on carbon dioxide and other greenhouse gases to curb emissions must be the centrepiece of any comprehensive climate-change policy. We know it works: pricing carbon creates broad incentives to cut emissions. Yet the current price of carbon remains much too low relative to the hidden environmental, health and societal costs of burning a tonne of coal or a barrel of oil1. The global average price is below zero, once half a trillion dollars of fossil-fuel subsidies are factored in.
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| 3. |
- Arrow, K. J., et al.
(författare)
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Should Governments Use a Declining Discount Rate in Project Analysis?
- 2014
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Ingår i: Review of Environmental Economics and Policy. - : University of Chicago Press. - 1750-6816 .- 1750-6824. ; 8:2, s. 145-163
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Tidskriftsartikel (refereegranskat)abstract
- Should governments use a discount rate that declines over time when evaluating the future benefits and costs of public projects? The argument for using a declining discount rate (DDR) is simple: if the discount rates that will be applied in the future are uncertain but positively correlated, and if the analyst can assign probabilities to these discount rates, then the result will be a declining schedule of certainty-equivalent discount rates. There is a growing empirical literature that estimates models of long-term interest rates and uses them to forecast the DDR schedule. However, this literature has been criticized because it lacks a connection to the theory of project evaluation. In benefit-cost analysis, the net benefits of a project in year t (in consumption units) are discounted to the present at the rate at which society would trade consumption in year t for consumption in the present. With simplifying assumptions, this leads to the Ramsey discounting formula, which results in a declining certainty-equivalent discount rate if the rate of growth in consumption is uncertain and if shocks to consumption are correlated over time. We conclude that the arguments in favor of a DDR are compelling and thus merit serious consideration by regulatory agencies in the United States.
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| 4. |
- Howard, P. H., et al.
(författare)
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Few and Not So Far Between: A Meta-analysis of Climate Damage Estimates
- 2017
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Ingår i: Environmental & Resource Economics. - : Springer Science and Business Media LLC. - 0924-6460 .- 1573-1502. ; 68:1, s. 197-225
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Tidskriftsartikel (refereegranskat)abstract
- Given the vast uncertainty surrounding climate impacts, meta-analyses of global climate damage estimates are a key tool for determining the relationship between temperature and climate damages. Due to limited data availability, previous meta-analyses of global climate damages potentially suffered from multiple sources of coefficient and standard error bias: duplicate estimates, omitted variables, measurement error, overreliance on published estimates, dependent errors, and heteroskedasticity. To address and test for these biases, we expand on previous datasets to obtain sufficient degrees of freedom to make the necessary model adjustments, including dropping duplicate estimates and including methodological variables. Estimating the relationship between temperature and climate damages using weighted least squares with cluster-robust standard errors, we find strong evidence that duplicate and omitted variable biases flatten the relationship. However, the magnitude of the bias greatly depends on the treatment of speculative high-temperature (> 4 C) damage estimates. Replacing the DICE-2013R damage function with our preferred estimate of the temperature-damage relationship, we find a three- to four-fold increase in the 2015 SCC relative to DICE, depending on the treatment of productivity. When catastrophic impacts are also factored in, the SCC increases by four- to five-fold.
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| 5. |
- Sterner, Thomas, 1952, et al.
(författare)
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Policy design for the Anthropocene
- 2019
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Ingår i: Nature Sustainability. - : Springer Science and Business Media LLC. - 2398-9629. ; 2, s. 14-21
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Tidskriftsartikel (refereegranskat)abstract
- © 2019, Springer Nature Limited. Today, more than ever, ‘Spaceship Earth’ is an apt metaphor as we chart the boundaries for a safe planet1. Social scientists both analyse why society courts disaster by approaching or even overstepping these boundaries and try to design suitable policies to avoid these perils. Because the threats of transgressing planetary boundaries are global, long-run, uncertain and interconnected, they must be analysed together to avoid conflicts and take advantage of synergies. To obtain policies that are effective at both international and local levels requires careful analysis of the underlying mechanisms across scientific disciplines and approaches, and must take politics into account. In this Perspective, we examine the complexities of designing policies that can keep Earth within the biophysical limits favourable to human life.
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| 6. |
- Sterner, Thomas, 1952
(författare)
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Higher costs of climate change
- 2015
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Ingår i: Nature. - 0028-0836 .- 1476-4687. ; 527, s. 177-178
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 7. |
- Yeh, Sonia, 1973, et al.
(författare)
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Tradable performance standards in the transportation sector
- 2021
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Ingår i: Energy Economics. - : Elsevier BV. - 0140-9883 .- 1873-6181. ; 102
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Tidskriftsartikel (refereegranskat)abstract
- Performance standards have a long history in environmental policy. A performance standard sets a standard of technology performance but leaves technology choice to producers; it increases the relative costs of technologies with undesirable performance characteristics and lowers the costs of technologies with desirable characteristics. The primary motivations are to promote innovation, to address consumers' undervaluation of efficiency, and to reduce externalities, such as air pollution and the risks of dependence on foreign oil. In the past decade, trading has been incorporated (thus termed as tradable performance standard, TPS) into several U.S. transportation programs: regulations for greenhouse gas emissions from passenger cars and trucks (national), zero-emission vehicle programs (10 states), the Renewable Fuel Standard (national), and low-carbon fuel standards (two states). TPS allows for equalization of marginal costs across eligible technologies and is therefore more efficient than pure regulations. We show that sectoral TPS programs have high credit prices but low price effects on products and provide strong incentives for upstream innovation and technology transformation. Unlike emissions pricing, however, they do not have a strong output effect: consumers do not bear the full cost of the pollution and do not have incentive to reduce consumption of polluting products. Given that the expected carbon price may be too low to substantially affect transportation demand or technology change, combining TPS with a carbon price may be necessary to drive innovation and achieve a sustained low-carbon transformation in the sector.
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| 8. |
- Larsson, Jörgen, 1966, et al.
(författare)
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International and national climate policies for aviation: a review
- 2019
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Ingår i: Climate Policy. - : Informa UK Limited. - 1752-7457 .- 1469-3062. ; 19:6, s. 787-799
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Forskningsöversikt (refereegranskat)abstract
- Aviation constitutes about 2.5% of all energy-related CO2 emissions and in addition there are non-CO2 effects. In 2016, the ICAO decided to implement a Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) and in 2017 the EU decided on faster emission reductions in its Emissions Trading System (EU ETS), which since 2012 includes the aviation sector. The effects of these policies on the expected development of air travel emissions from 2017 to 2030 have been analyzed. For the sample country Sweden, the analysis shows that when emissions reductions in other sectors are attributed to the aviation sector as a result of the EU ETS and CORSIA, carbon emissions are expected to reduce by -0.8% per year (however if non-CO2 emissions are included in the analysis, then emissions will increase). This is much less than what is needed to achieve the 2 degrees C target. Our analysis of potential national aviation policy instruments shows that there are legally feasible options that could mitigate emissions in addition to the EU ETS and CORSIA. Distance-based air passenger taxes are common among EU Member States and through increased ticket prices these taxes can reduce demand for air travel and thus reduce emissions. Tax on jet fuel is an option for domestic aviation and for international aviation if bilateral agreements are concluded. A quota obligation for biofuels is a third option.
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| 9. |
- Slunge, Daniel, 1968, et al.
(författare)
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REACH authorisation and the substitution of hazardous chemicals: The case of trichloroethylene
- 2022
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Ingår i: Journal of Cleaner Production. - : Elsevier BV. - 0959-6526. ; 364
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Tidskriftsartikel (refereegranskat)abstract
- Through a survey with European companies and expert interviews we study how REACH authorisation affects the phase-out of hazardous chemicals focusing on trichloroethylene, a well-studied solvent used in metal parts cleaning. We find that most of the firms have substituted trichloroethylene by perchloroethylene, which has similar chemical characteristics. This allows them to continue to use the same machines and routines at low costs. Although perchloroethylene is only classified as a suspected rather than a proven carcinogenic substance in Europe, the “improvement” as the result of much regulatory effort must be considered fairly limited, particularly in the light of less hazardous alternatives being used on the market for a long time. Our survey shows that the REACH authorisation process has some effect. Many firms cited as their main reason for substitution that they wanted to avoid the renewed application process. Still, the fact that many firms report using old machines reinforces the impression that some firms are not feeling enough pressure to modify routines and engage in a more fundamental substitution process. The results illustrate the limited effectiveness of a substance by substance approach in chemical risk management. When companies can substitute chemicals of concern to substances with similar chemical characteristics, the health and environmental objectives of chemical regulation are not achieved. An important policy conclusion is that additional incentives need to be introduced in order to realize the ambition of a non-toxic environment in the European Chemicals Strategy for Sustainability. Increased use of measures targeting broader groups of structurally similar hazardous chemicals, in combination with fees that incentivize substitution, are promising avenues for a more sustainable European chemicals strategy.
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| 10. |
- Carson, Richard T., et al.
(författare)
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Perceptions of the seriousness of major public health problems during the COVID-19 pandemic in seven middle-income countries
- 2023
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Ingår i: Communications Medicine. - : Springer Nature. - 2730-664X. ; 3
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Tidskriftsartikel (refereegranskat)abstract
- IntroductionPublic perception of the seriousness of the COVID-19 pandemic compared to six other major public health problems (alcoholism and drug use, HIV/AIDS, malaria, tuberculosis, lung cancer and respiratory diseases caused by air pollution and smoking, and water-borne diseases like diarrhea) is unclear. We designed a survey to examine this issue using YouGov’s internet panels in seven middle-income countries in Africa, Asia, and Latin America in early 2022.MethodsRespondents rank ordered the seriousness of the seven health problems using a repeated best-worst question format. Rank-ordered logit models allow comparisons within and across countries and assessment of covariates.ResultsIn six of the seven countries, respondents perceived other respiratory illnesses to be a more serious problem than COVID-19. Only in Vietnam was COVID-19 ranked above other respiratory illnesses. Alcoholism and drug use was ranked the second most serious problem in the African countries. HIV/AIDS ranked relatively high in all countries. Covariates, particularly a COVID-19 knowledge scale, explained differences within countries; statistics about the pandemic were highly correlated with differences in COVID-19’s perceived seriousness.ConclusionsPeople in the seven middle-income countries perceived COVID-19 to be serious (on par with HIV/AIDS) but not as serious as other respiratory illnesses. In the African countries, respondents perceived alcoholism and drug use as more serious than COVID-19. Our survey-based approach can be used to quickly understand how the threat of a newly emergent disease, like COVID-19, fits into the larger context of public perceptions of the seriousness of health problems.
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