Carbon Is Our Enemy: Let’s Use Everything We’ve Got To Fight It

Why we need hybrids and plug-ins to maximize our limited battery supply and reduce carbon

At the 1989 Tour de Sol, an annual rally for solar powered vehicles, where I designed and built power electronics for a vehicle that travelled across Switzerland and through the Alps.

Following the Science

As a scientist, I know that as with many other natural and man-made systems, a diversity of EV drivetrain types is a better way to prevent climate change than a monoculture of only BEVs.

Since battery production is environmentally and financially costly, “smart-sizing” battery packs enables battery cells to be spread across many more electrified vehicles thereby reducing more carbon emissions (the red in this graphic represents unused batteries).

Ending Carbon Emissions ASAP

So where does this leave us?

Toyota plans to introduce 15 battery electric vehicles (BEVs), including seven Toyota bZ models, by 2025. The Toyota bZ4X (concept version pictured) will be the first model in the bZ series.



Subsidiary of Toyota with a mission to improve the quality of human life through advances in energy and materials, human-centered artificial intelligence, human interactive driving, machine learning, and robotics.

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Gill Pratt

Accelerating sustainable transport as Toyota Motor Corporation’s Chief Scientist. Amplifying the human experience as Toyota Research Institute’s CEO.