In the context of climate protection policy it has been suggested that global CO2 emissions should be reduced significantly (contraction) and that per capita emissions should gradually be equalized across countries (convergence). This paper uses a dynamic multi-region computable general...

In 2005, an EU-wide emissions trading scheme covering major CO2 producing sites shall come into power. The key objective of the trading scheme is to promote cost-efficiency of carbon reduction within the EU. We identify policy-relevant tradeoffs between overall efficiency, compensation and...

Several EU member states are exploring options for setting minimum domestic carbon prices within the EU Emission Trading System (ETS). First, a "TAX" policy would introduce a carbon tax equal to the difference between the prevailing ETS price and the targeted minimum price. Second, a national...

Several EU member states are exploring options for setting minimum domestic carbon prices within the EU Emission Trading System (ETS). First, a "TAX" policy would introduce a carbon tax equal to the difference between the prevailing ETS price and the targeted minimum price. Second, a national...

New York is considering additional emission regulation on top of its obligations under the Regional Greenhouse Gas Initiative (RGGI) to achieve its State Energy Plan targets. The proposed measure is a so-called "carbon adder" on CO2 emissions from the power sector which is set as the difference...

The Nationally Determined Contributions (NDCs) under the Paris Agreement fall short of the abatement needed to reach the 2°C target. Emissions trading could be a "costless" means to reduce the ambition gap if countries used their gains from trade for additional abatement. However, this requires...

Given the bleak prospects for a global agreement on coordinated policies to mitigate climate change, political pressure is increasing among industrialized countries for unilateral abatement. A major challenge thereby is the appropriate response to the threat of emissions leakage. Border carbon...