Summary

Nowadays many problems have occurred like famine, energy crisis and recession. While we could not prevent them, we have to find solutions to improve the situation. It is known that land is limited, so we have to increase its productivity by bringing production to high up. An idea was published in a journal about a glasshouse. Another suggestion is to pursue ecologically sustainable development, which means using natural materials and not promoting production or import. People should also organise more competitions like this and support wise man unions, so that good ideas could be brought to public and together followed up.