*Ton of lithium: 13.200$ *Ton of walnuts: 14.000$ *Ton of pork cracklings: 23.500$ What is truly Serbian gold? The answer to this question is not simple, as it seems. Assessments should include the impact on the environment and health, energy, investments, labor, technology, knowledge, and time. #natural resources #mining #food #energy #nature #environment #lithium #walnuts #cracklings