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From the article
Several caveats are needed to put these striking results into context. First, any study is only as good as the available data. Globally robust data sets on environmental externalities are incomplete, and therefore the results are indicative, not absolute. Some significant environmental changes have been omitted: the destruction of coral reefs, the dispersal of persistent pollutants and the costs of biodiversity loss. The authors are up-front about these limitations. But they justly suggest that the omissions indicate that their estimates of ecological debts are conservative.
Furthermore, the study does not look at the benefits of increased trade to material wealth and human health. But it is unlikely that this would change the balance of the results: the available, albeit partial, evidence indicates that, despite some gains by poorer countries through the liberalization of trade and finance, the number of people living in poverty has increased or stayed the same during the past 25 years, and the gains of economic globalization have been heavily skewed towards wealthy nations2 (Fig. 1). One of the most detailed studies on global inequality concludes9 that income divergence between rich and poor nations has "at best ... decelerated after 1950, but [has] not reversed". Large areas of Central and South America, and almost all of sub-Saharan Africa, have been left behind.
Srinivasan and colleagues' work1 should raise the scientific profile of issues vital to human well-being, including research into ecosystem services and the effects of large-scale ecosystem conversion, and how such changes both create and alleviate poverty. We must better understand the complex interactions between our economic, social and ecological systems, and the biological diversity that supports them. Scientists and society as a whole need to ask of our current economic paradigms in an era of globalization: why do they produce such inequities; who pays the costs; and are they ecologically and socially sustainable?
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Tru6 Restoration & Design
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