I think that while we should certainly contribute to assess and counter  climate risks, we should be prudent in the active use of our monetary policy instruments for this purpose, carefully considering the costs and benefits of our actions with reference to the efficacy of the transmission mechanism and the effects on economic activity and carbon emissions.
A more climate-oriented purchase of assets is currently hampered by the fact that climate-related data and climate-aware instruments are still underdeveloped. As for the latter, the outstanding value of green bonds is very limited, around 3.5 percent globally.