> the leaf can make hydrogen from any water—dirty water, even urine I wonder how they tackle the problem of monoculture. The issue with biofuel from algae is

> the leaf can make hydrogen from any water—dirty water, even urine I wonder how they tackle the problem of monoculture. The issue with biofuel from algae is that once the container is contaminated with fungae, it reqires expensive draining and bleaching.