But there are a number of strong indications that the ECB is not a relevant institution under the Climate Law. Let me explain why. The Climate Law does not contain many specific obligations. The law sets out a destination: climate neutrality. It does not tell us how to get there. How we do so will depend on environmental and economic policymaking. This is a Union competence the ECB does not have. There are further arguments that support this interpretation. If the ECB is deemed to be a relevant institution, then it would have to submit its policies to the Commission for assessment and the Commission would monitor progress. That would be a fundamental change to the ECB’s accountability framework. Under current law, the ECB is only directly accountable to the European Parliament and the European Court of Auditors. [7] A final reason for this view is institutional. If the ECB were deemed to be a relevant institution within the meaning of the Climate Law, this would be an implicit acceptance that the Council of the EU and the Parliament could set additional objectives for the ECB through the ordinary legislative procedure. However, the ECB’s objectives are laid down in the Treaty on the Functioning of the European Union (TFEU)[8], and their scope cannot be changed by secondary legislation. That would be a violation of the Treaty. Changing the ECB’s objectives requires a special procedure. The ECB is – it seems – not directly bound by the Climate Law. So, can we ignore it? Not at all.
The introduction of a European Scientific Advisory Board on Climate Change promotes the idea that all policies should be based on up-to-date scientific insights. It is hard to overstate the importance of the Climate Law. The EU is setting the bar high. Allow me to quote what the law says about the transition to climate neutrality. It “requires changes across the entire policy  spectrum and a collective effort of all sectors of the economy and society […] all relevant Union legislation and policies need to be consistent with, and contribute to, the fulfilment of the climate-neutrality objective while respecting a level playing field”[4]. We are starting to see this happen. From housing to energy and from transport to finance, the EU is introducing reforms to put Europe on track to become the first climate-neutral continent by 2050. So how will the Climate Law affect the ECB? For me, as a member of the ECB’s Executive Board and the ViceChair of its Supervisory Board, this question is relevant to both our monetary policy and banking supervision tasks. This question matters because, in the field of the environment, the ECB is a policy taker, not a policymaker. So what does the ECB need to take from the policy and objectives reflected in the Climate Law? To answer this, we first need to consider whether the ECB is bound by the Climate Law. If so, the ECB would have to take measures towards achieving the climate-neutrality objective. There is more, though.