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The idea of ‘green growth’ is flawed. We must find ways of using and wasting less energy

As countries explore ways of decarbonising their economies, the mantra of “green growth” risks trapping us in a spiral of failures. Green growth is an oxymoron.

Growth requires more material extraction, which in turn requires more energy. The fundamental problem we face in trying to replace fossil energy with renewable energy is that all our renewable technologies are significantly less energy dense than fossil fuels.

This means much larger areas are required to produce the same amount of energy.

Earlier this year, data from the European Union showed renewable electricity generation has overtaken coal and gas in 2020. But previous research argued that to replace the total energy (not just electricity) use of the UK with the best available mix of wind, solar and hydroelectricity would require the entire landmass of the country. To do it for Singapore would require the area of 60 Singapores.

I am not in any way denying or diminishing the need to stop emitting fossil carbon. But if we don’t focus on reducing consumption and energy waste, and instead fixate on replacing fossil fuels with renewable energy, we are simply swapping one race to destruction with another.

The carbon causing our climate problem today came from fossilised biology formed through ancient carbon cycles, mostly over the 200 million years of the Mesozoic era (ending 66 million years ago).

We must stop burning fossil fuels, but we must also understand that every technology to replace them, while attempting to maintain our current consumption, let alone allowing for consumption growth, requires huge amounts of fossil energy.

Environmental impact of renewables

Carbon reduction without consumption reduction is only possible through methods that have their own massive environmental impacts and resource limitations.

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