Politics (from Greek: πολιτικά, translit. Politiká, meaning "affairs of the cities") is the process of making decisions that apply to members of a group.
A weapon that comes down as still As snowflakes fall upon the sod; But executes a freeman's will, As lightning does the will of God; And from its force, nor doors nor locks Can shield you; 'tis the ballot-box.
Much as sponges soak up water and remove it from a surface, industrial sorbents collect molecules in fluids or gases. EU-funded scientists are developing carbon-based nanosorbents from vegetative waste for improved removal of industrial contaminants.