![](https://sustainabonds.com/wp-content/uploads/2018/05/BerlinHyp-150-trees-sweb-326x245.jpg)
No resting on its laurels: Berlin Hyp tightens green bond framework
Ahead of 150th birthday celebrations on 8 May marked by a gift of saplings to its home city, Berlin Hyp tightened its pioneering green bond framework and revealed an increasing positive environmental impact from the programme.