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Len Rosen's picture
Principal Author and Editor, 21st Century Tech Blog

Futurist, Writer and Researcher, now retired, former freelance writer for new technology ventures. Former President & CEO of Len Rosen Marketing Inc., a marketing consulting firm focused on...

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  • Apr 5, 2022
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What is the cost to turn back global warming by mid-century and keep the mean temperature rise to 1.5 Celsius? $131 trillion in U.S. dollars states IRENA as described in The Wall Street Journal. Meanwhile, the latest IPCC Working Group III report on mitigation strategies lays out the parameters and pathways needed to stay as close to 1.5 as possible although it means actions need to be taken in the next three years.

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Jenny Corry Smith's picture
Jenny Corry Smith on Apr 26, 2022

A number like $131 trillion is of a high enough magnitude to discourage people from believing in real progress. In comparison to other solutions that do indeed require billions of dollars in infrastructure modification and creation, there are solutions that can be implemented without that level of upfront capital.

Raising the standards of appliance performance and promoting labeling programs can reduce the amount of CO₂ emitted for mere cents against the cost of carbon($51 USD/tonne). There is some cost associated, but of course, it is much less than that incurred from having to clean up the mess of dirty energy.

Len Rosen's picture
Len Rosen on Apr 27, 2022

I realize that the number presented is difficult for most of us to comprehend. But within that number is everything you are suggesting needs to be implemented. I'm a big promoter of raising standards, of tracking personal carbon footprints, of measuring carbon content in every purchase I make. GreenSWRM is an app that I have written about that allows a user to track their interaction with carbon in everyday decision making.

The energy producers of the world know, however, that their participation in reducing GHGs is critical for global success in getting to net-zero by mid-century.   

Len Rosen's picture
Thank Len for the Post!
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