Can you invest responsibly in biofuels? What are biofuels and how are they derived? Can these be used in power generation?
Natural capital is everything nature offers for "free". Bees do not send an invoice for pollinating crops, and forests are mostly valued for the price of timber, rather than taking into account the economic value of all the different ecosystem services they provide such as carbon storage and water filtering. It is certainly a complex exercise to put a value on natural capital, although that value becomes clearer once it becomes scarce.