Decisions of electricity suppliers on investments in low-carbon energy technologies like photovoltaic (PV) and carbon dioxide capture and storage (CCS) depend on the expected profits or surpluses that can be earned. For an assessment of the profitability of investments in PV (and other renewable...

The precise consequences of climate change remain uncertain. We incorporate damage uncertainty into a joint model of climate and the economy, an integrated assessment model. First, both the science and the integrated assessment community analyze uncertainty by means of sensitivity analysis and...

We propose a development-compatible refunding system designed to mitigate climate change. Industrial countries pay an initial fee into a global fund. Each country chooses its national carbon tax. Part of the global fund is refunded to developing and industrial countries, in proportion to the...

To decarbonize the power sector policy-makers need to commit to long-term credible rules for climate and energy policy. Otherwise, time-inconsistent policy-making will impair investments into low-carbon technologies. However, the future benefits and costs of decarbonization are subject to...

Green bonds allow firms to commit to climate-friendly projects. Equity investors react positively to their announcement. Based on prior empirical studies, we suggest that green bond commitments help managers signal the profitability of their green projects and that they do so because they are...

The social rate of discount is a crucial driver of the social cost of carbon (SCC), i.e. the expected present discounted value of marginal damages resulting from emitting one ton of carbon today. Policy makers should set carbon prices to the SCC using a carbon tax or a competitive permits...

Over the coming decades, the cost of U.S. climate change policy likely will be comparable to the total cost of all existing environmental regulation-perhaps 1-2 percent of national income. In order to avoid higher costs, policy efforts should create incentives for firms and individuals to pursue...

This paper presents a two-sector green endogenous growth model to explore a mechanism that explains why carbon-intensive capital is not necessarily shut down during transition to a green economy. Without accumulating clean capital to offset carbon emissions, a tightening of climate regulation...

Cumulative emissions drive peak global warming and determine the safe carbon budget compatible with staying below 2oC or 1.5oC. The safe carbon budget is lower if uncertainty about the transient climate response is high and risk tolerance low. Together with energy costs this budget determines...