Invest in Young Women
If you want to invest in sustainability, then invest in women entrepreneurs. Globally, young women are the most likely change agents. However, invisibility and lack of access to capital inhibits their capacity. Here is an awareness-raising video from Girl Effect.

Interesting thought. I believe access to capital is equally difficult for young man. It shouldn’t be an issue of sex. It is just a matter of experience.
The facts are sadly that it is much more unlikely for a woman-owned business to be VC-funded. The flip side is that lack of access has pushed some women to innovate for funding sources.