The financial shock the UK has recently suffered is of course bad for green investment. The Rishi Sunak-led government is also likely to use this crisis to push for further public spending cuts that will rule out a truly transformative green agenda.
Instead, the global economy has been trapped in a state of relative stagnation in rates of growth, productivity, investment and profitability since at least the 2008 financial crisis, with some scholars even dating the onset of the malaise to the 1970s. This so-called secular stagnation is a global trend, but the UK has performed particularly poorly.
This represents a colossal problem for mainstream visions of decarbonisation. Most states, business groups and international organisations believe it must be driven by a tremendous global boom in private investment in renewable energy and sustainable infrastructure – estimates range from US$4.4 trillion a year until 2050 up to $9.2 trillion a year.
In this view, the role of states is to shepherd investors away from “brown” fossil fuel assets and towards green ones. The problem with this “green growth” vision is that for decades it has proven very difficult for states to generate any global, sustained boom in private investment – whether green or brown.
There is no consensus on the causes of this long-term stagnation, with different scholars pointing to slowing population growth, anti-labour policy agendas, or industrial overproduction. Yet what is clear is that stagnation acts as a fundamental drag on efforts to green the world economy. A few examples can illustrate this.
Steel and solar
The steel industry is a key driver of climate change and is responsible for around 7% to 9% of global carbon emissions. Currently, many steel plants burn coke to heat their blast furnaces, releasing carbon dioxide in the process. There are several ways to green this process, with perhaps the most plausible involving the use of green hydrogen and electric arc furnaces.
The problem is that these green solutions are expensive, in an industry that is already wracked by overproduction and weak profitability. Reorganising production and retooling factories worldwide would require firms to make massive investments, but glutted steel markets mean that such investments would be unlikely to yield high returns. The stagnant state of the industry therefore militates against its rapid decarbonisation.