Study: How to make the world affordably carbon-free

This article discusses how to make the world affordably carbon-free. If the world is to quit coal and gas for renewable energy sources, they have to be reliable and affordable. Is that realistic? Researchers have crunched the numbers and come up with some surprising answers.

How much sun and wind is available in different areas of the world? How high is the energy demand? How do we set about cutting costs for renewable energies and their storage?

These are just some of the questions put forward by researchers from the Lappeenranta University of Technology (LUT) in Finland and experts from the Energy Watch Group (EWG). They have used their answers to compile the first detailed global energy scenario.

The study, which has just been published, outlines strategies for 145 different regions around the world, with the ultimate aim of reducing greenhouse gas emissions to zero by 2050 — and even save money in the process.

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