Estimates of marginal abatement costs for reducing carbon emissions in the United States by the major economic-energy models vary by a factor of five, undermining support for mandatory policies to reduce greenhouse gas emissions. We use meta analysis to explain these cost differences, holding...

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...

In the first dispute on renewable energy to come to WTO dispute settlement, the domestic content requirement of Ontario's feed-in tariff was challenged as a discriminatory investment-related measure and as a prohibited import substitution subsidy. The panel and Appellate Body agreed that Canada...

When it was launched in 2005, the European Union emissions trading system (EU ETS) was projected to have prices of around €30/ton CO2 and to be a cornerstone of the EU’s climate policy. The reality was a cascade of falling prices, a ballooning privately held emissions bank, and a decade of...

In the first dispute on renewable energy to come to WTO dispute settlement, the domestic content requirement of Ontario's feed-in tariff was challenged as a discriminatory investment-related measure and as a prohibited import substitution subsidy. The panel and Appellate Body agreed that Canada...

In the first dispute on renewable energy to come to WTO dispute settlement, the domestic content requirement of Ontario's feed-in tariff was challenged as a discriminatory investment-related measure and as a prohibited import substitution subsidy. The panel and Appellate Body agreed that Canada...

In the first dispute on renewable energy to come to WTO dispute settlement, the domestic content requirement of Ontario's feed-in tariff was challenged as a discriminatory investment-related measure and as a prohibited import substitution subsidy. The panel and Appellate Body agreed that Canada...