Protecting the planet is good economics, and the case for it was made clearly two decades ago. That is the central argument of a column by Fiona Harvey, the Guardian's environment editor, who writes that the climate crisis threatens to destroy the economies that mainstream thinking once assumed it would merely dent. Her question is pointed: if the lesson was learned twenty years ago, why has so little been done?
The turning point she points to is the Stern report, a radical analysis that showed a low-carbon future is also a sound economic choice. Harvey notes that the logic it set out now seems self-evident. There is no money to be made on a dead Earth, and the costs of acting today are worth paying to protect future generations from what she describes as certain destruction. The propositions that once sounded radical now appear almost obvious.
Harvey recalls how different the mainstream view was at the time. Many economists had concluded that the climate crisis would be a mere economic blip, one that growing economies could easily absorb and therefore not worth spending money to prevent. In their accounting, ice caps and glaciers were functionally worthless, trees added to gross domestic product only when they were cut down, and a livable climate did not merit a line on a spreadsheet. Those assumptions treated the natural systems that sustain economic life as if they had no value at all.
The Stern analysis challenged that framing directly. By putting a value on the natural systems that conventional models ignored, it made the economic argument for early and deep emissions cuts. The column argues that the core insight has been available for two decades, yet the response from capitalism and from policymakers has lagged behind what the evidence supports. Harvey describes the delay as a failure to act on something that had already been understood.
The gap between understanding and action is the heart of her critique. A low-carbon economy, on the logic she lays out, is not a sacrifice that growth must bear but a path that serves growth itself, since a planet that cannot support stable weather, productive land and healthy oceans cannot support lasting prosperity. The piece frames the remaining obstacle less as a problem of knowledge than of political and economic will, and it asks why a conclusion reached twenty years ago still waits for the decisions that would follow from it.
The column is an opinion piece rather than a report of new research. Its central claim rests on the historical contrast between the earlier economic consensus and the economic case later set out in the Stern report. Harvey's message is that the economic and environmental arguments now point in the same direction, and that the remaining barrier is an unwillingness to act on what has long been understood. The source does not offer new figures or fresh official responses, so the argument stands on that historical contrast and on the logic of the Stern analysis as Harvey presents it.
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