3 things that attacks sustainability

Many organic farms invite volunteers to enjoy their sustainability. Now, which are 3 things that attacks sustainability?

Chemicals, especially from detergents. Alternatives can be hot water for greasy dishes and soap nuts for clothes. https://www.youtube.com/results?search_query=soap+nuts

Fiat currency not backed in gold. Austrian school of economics teaches free trade of real goods and services. http://relate4ever.com/walterblock-interview

Radiation, especially electromagnetic. The solution is wired connections, including USB keyboard and mouse. http://relate4ever.com/radiation-protection