Because they would otherwise, from a risk perspective, steadily shift the focus of their investment to green and sustainable assets and so contribute to the attainment of the climate targets. Europe can give impetus and set up the right framework. [11] Central banks such as the European Central Bank can also help to fight climate change.
In this context, I refer it to the volume of financial assets in an economy as a proportion of its GDP. 8/8  BIS - Central bankers' speeches