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It Bears Repeating: Renewables Alone Won’t End the Climate Crisis

It Bears Repeating: Renewables Alone Won’t End the Climate Crisis

‘We have to look at downsizing, degrowth, using less.’

WindTurbine.jpg
We’ve got a ways to go if we choose to reduce emissions by simply replacing fossil fuels with wind turbines. What also matters: using less energy.Photo via Shutterstock.

Although the media still portrays climate change as some vague threat to “the environment,” it is really a self-made blitzkrieg that is already destabilizing a highly energy-intensive and complex human civilization.

Greta Thunberg has spoken prophetically: our civilized house is on fire. 

But our collective politicians, blinded by ideology and technological illusions, refuse to panic, let alone call the community fire department. 

They behave as though they can just build another house somewhere else on Mars, and then watch the conflagration on Netflix

In that previous analysis, I quoted a Colorado professor, Roger Pielke Jr., who recently noted in Forbes that if we really wanted to reach zero carbon emissions by 2050, and we solely choose wind power as the solution, we’d need to build and deploy 1,500 wind turbines on about 300 square miles every day for the next 30 years.

We can’t do that, of course, because of physics and economics. Pielke was simply illustrating the scale of the challenge if we thought that renewables could do all the work for us.

But a great many readers questioned Pielke’s math; others questioned his motivation. Others questioned my sanity in quoting such a fellow.

Having written about energy for 30 years (and my best scribbling on the matter remains The Energy of Slaves), I thought Pielke’s numbers, which can vary with wind power due to location and size of blades, were largely accurate and conveyed the enormity of the task at hand, especially if we think our energy crisis is just a substitution problem. 

 …click on the above link to read the rest of the article…

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