Without natural capital (including a safe climate, productive soils, available water, and protection against flooding), the other kinds of capital are easily lost. And without universal access to public investments in human capital, societies will succumb to extreme inequalities of income and wealth.
这六种形式的资本以互补的方式起作用。没有基础设施和人力资本，商业投资就不可能盈利。如果社会资本（信任）耗尽，金融资本也无法运行。没有自然资本（包括安全的气候、肥沃的土壤、易得的水源和防洪措施），其他类型的资本就很容易失去。