With the European Union for the first time taking on debt to help finance the economic recovery from the coronavirus, new resources are needed to fund the EU budget. Various ideas have been floated – including a digital tax and a financial transactions tax – but the most appropriate new resource would be revenues from the EU emissions trading system, which could provide enough funding to repay the EU's coronavirus borrowing.
In the wake of COVID-19, some economic recovery policies will help green the economy – for example, energy renovation of buildings. But there are limits to the share of stimulus that can be explicitly green. The European Union should therefore also green the fiscal consolidation by setting out the path to much higher carbon prices than today. This would guide investment and provide revenues to help the fiscal consolidation.