On Natural Capital: The Value of the World Around Us by Partha Dasgupta – Review

Key Takeaways

• Wildlife populations have fallen 73% over the last five decades
• Current consumption would require 1.7 Earths to remain sustainable
• UK now frames biodiversity loss as a national security threat
• Externalities are excluded from GDP, masking true environmental costs
• Dasgupta proposes pricing natural assets like rent to curb overuse

Pulse Analysis

"On Natural Capital" arrives at a moment when investors and policymakers are scrambling to quantify the hidden costs of ecosystem degradation. Dasgupta builds on a 2019 UK‑commissioned biodiversity report, arguing that traditional metrics like GDP ignore the depreciation of natural assets. By framing nature as capital—subject to depreciation, maintenance, and regeneration—he provides a framework for integrating ecosystem services into balance sheets, a shift that could unlock trillions in green investment and reshape corporate reporting standards.

The book’s stark data points underscore the urgency: a 73% drop in wildlife populations, oceanic low‑oxygen zones expanding to an area comparable to the European Union, and extinction rates soaring up to a thousand times historic averages. These trends translate directly into supply‑chain risk, heightened insurance premiums, and potential geopolitical instability, as the UK’s recent designation of biodiversity loss as a national‑security threat illustrates. For businesses, ignoring these externalities means under‑pricing products and exposing themselves to regulatory backlash and reputational damage.

Dasgupta’s prescription is pragmatic: assign explicit rents or fees to the extraction of open‑access resources, internalise externalities through carbon pricing, and overhaul national accounts to reflect natural‑capital flows. Such reforms would incentivise sustainable land‑use, protect pollinator services, and encourage circular‑economy models. As investors demand ESG‑aligned returns, companies that adopt natural‑capital accounting early will gain a competitive edge, while policymakers can use the framework to design more resilient, climate‑smart economies.