the major banks in the euro area. this year we are celebrating the tenth anniversary of the banking union in europe – with banking supervision under one roof at the ecb as a central pillar. banking union was a response to crises. the global financial crisis and the european debt crisis showed that financial sector risks don ’ t stop at international borders. the risks arising from climate change and nature degradation are also global. they affect all countries, they affect all banks. for several years now, european banking supervision has therefore been working intensively on climate - related and environmental risks. these are physical risks such as floods, wildfires or storms. extreme weather events can reduce the value of property and thus the collateral held by banks for loans. credit risk increases. climate change also entails transition risks. if the carbon price rises, then costs initially also rise for companies with high carbon dioxide emissions. this is intended, to steer behaviour. but in the meantime loan defaults may increase. that means that banks have to assess how climate - related and environmental risks affect their balance sheets. as with any other type of risk, they must first identify and then manage these risks well. they must have enough capital to absorb potential losses. in other words, they need to be resilient. with good risk management and sufficient resilience, banks can make a key contribution to a more sustainable economy. they must work closely with their customers and provide financing so that firms can realign their supply chains and production. how much are banks affected by climate - related and environmental risks? in 2019 we asked european banks about climate - related risks for the first time, with somewhat sobering results. for many banks, climate - related risks were a relatively new topic. data needed to measure the risks weren ’ t available. plans for managing climate - related risks were lacking. in 2020 ecb banking supervision therefore developed a guide to dealing with climate - related and environmental risks. [ 6 ] the intention is not to steer bank lending or generally prevent loans from being made to carbon - intensive companies. the important thing for us is that banks manage their climaterelated and environmental risks well. in 2022 we conducted a thematic review [ 7 ] on climate - related and environmental risks and a climate risk stress test. the result showed that a high proportion of banks ’ interest income comes from loans to carbon - intensive sectors. [ 8 ] we are working closely with the banks to improve the management of the risks this entails. the situation has

speech working together for climate neutrality : what role do stable banks play? speech by claudia buch, chair of the supervisory board of the ecb, at ‘ ’ the week of the environment ” berlin, 4 june 2024 thank you very much for inviting me to the opening of the seventh week of the environment. i am delighted to talk today about the significance of climate - related and environmental risks for the stability of the economy and the financial system – a very important topic for us at the european central bank. because climate change and nature degradation are everywhere. they are palpable, hold major risks and cause massive damage to the economy. not just in the distant future but here and now, right on our doorstep. floods, droughts and heatwaves have already caused considerable financial damage in the europe. studies show that, if nothing is done, global heating in the period up to 2050 could lead to a loss in global economic output of several percentage points per year. [ 2 ] the loss of biodiversity would also have considerable economic costs. we need to protect our climate and environment today if we are to live in a secure and stable world tomorrow. climate protection and biodiversity are a necessity if people and firms are to be able to plan with confidence for their future – without worrying that their livelihoods and businesses are endangered. climate - related and environmental risks also affect the banking sector. because banks are an important bridge to the future. their loans reflect the economic structures of the past – for example loans made to companies with high carbon dioxide emissions. banks can at the same time help to shape the future by making new loans, for example to producers of renewable energy. such financing is important, as by 2030 carbon dioxide emissions in europe have to be cut by 55 %. [ 4 ] that will require investment. banks cannot provide this financing alone, as the investments are often long - term and risky, and also require capital market financing. but banks certainly play an important role in the financing of the green transition. why is the european central bank ( ecb ) interested in climate - related and environmental risks? climate and environmental policy are not the role of a central bank. they must be shaped by elected parliaments. but the ecb has to consider the effects of climate change and climate policy when carrying out its mandates. the ecb ’ s monetary policy mandate is affected by the overall economic impact of climate change. but the ecb has another important role alongside monetary policy : it supervises