Most of the methane gases are created by meat industry. Growing vegetables also creates pollution. Sea weed has been used as food for centuries, in Japan for example.Growing sea weed creates a little pollution to enviroment. We should all eat more sea weed.
I am not sure how sea weed would fit to finnish taste of food for example, but I think if you to something enough, you get used to it.
This text shows the importance of seaweed: " Land plants require a rigid structure to withstand the constant pull of gravity, which marine plants do not need. Instead, they do need a flexible structure to accommodate the varying stresses as result of currents and wave motion. Seaweed and algae have, unlike their earthly cousins, no roots, leaves, or vascular systems. They nourish themselves through osmosis, attracting gases and nutrients dissolved in the watery environment that is their home.
Because of the lack of a vascular system, the minerals/nutrients in seaweeds are in colloidal form, able to retain their molecular identity in liquid suspension. The micronutrients and electrolytes in seaweed are bio available, in a form that human cells need to mesh with their metabolisms. Not surprising really, because the composition of human blood plasma, or fluid surrounding cell membranes, is similar to that of seawater."
Research question: ?