Climate Change and NZ’s Future

More Cars, Less Pollution, Stable Climate

Each year I present a lecture and tutorial at Victoria University of Wellington, showing how New Zealand can totally replace fossil liquid fuels with climate-neutral alternatives, without inconveniencing New Zealand motorists. This is part of a three-week undergraduate course covering all aspects of climate change.

My lecture draws upon the research behind From Smoke to Mirrors. Since the book came out, some of my predictions have come true. I’m more convinced than ever that climate-neutral petrol (gasoline) and diesel will be at least as affordable in the late 21st century as conventional fuels are today. And, if we do the right things in the very near future, New Zealand can certainly have the world’s cheapest climate-neutral petrol, diesel, and jet fuel.

THE BIG QUESTION: What do YOU want to do about human-made climate change?

  • Tax it?
  • Study it?
  • Fix it?

My lecture, and research, is about safe, reliable, car-friendly methods of fixing the Earth’s climate. There are plenty of excellent options.

Click here to download the course notes (November 2017)

And here you can download some discussion notes for the tutorial.

Carbon-Neutral Electricity for New Zealand

I’ve long suspected that carbon-neutralising New Zealand’s electricity supply won’t be difficult. Some miserable naysayers say we’ll have trouble satisfying peak demand. That shows a lack of imagination.

A February 2013 analysis by three Canterbury-based engineers shows the way. Ian Mason and his colleagues crunched the numbers. Peak generating capacity won’t be a problem.

Their presentation clearly shows that New Zealand can build a fully climate-neutral power grid using existing well-proven technology. Download their presentation, Transitioning to a 100% renewable electricity system for New Zealand.

The Global Prognosis

Climate science shows a clear need to completely eliminate carbon dioxide emissions from burning fossil fuels. In 2012 I analysed the global liquid fuel situation.

As with my local analysis (From Smoke to Mirrors), I focussed on worst case (or “marginal”) fuel prices. I looked only at technologies that are capable of satisfying global demand, with good EROI.

Taking a holistic view of the world economy, I found that climate-neutral petrol, diesel, and jet fuel in 2080 will be at least as affordable as conventional fuels are today. The important technologies are described in From Smoke to Mirrors. New Zealand’s biggest and best opportunity is bioenergy. Most foreign countries will exploit a different mix of resources. Key Point: The underlying resource is more than adequate to fully satisfy humanity’s appetite for independent personal transportation (cars!).

My global DriveSolar vision shows how crude oil in the future can be carbon-negative. The more you drive, the more you cool the climate. More importantly, carbon-negative crude oil production has the potential to stabilise global sea levels.

DriveSolar is a work in progress. I’ve posted a rough description here, together with some relevant posts from my mothballed blog, Techogeny. This really is a rough draft so please don’t hesitate to contact me if you have any questions.)

[UPDATE, 21 Jan 2017: The drivesolar paper now includes the arithmetic behind my assertion that it is possible to calculate a sustainable rate of methane and nitrous oxide emissions (Appendix 3).]

If you’ve taken ESCI201 and you have any questions about my lecture, email me at Kevin Cudby's email

Download a sample of From Smoke to Mirrors and find out why New Zealand’s climate-neutral petrol, diesel, and jet fuel in 2040 will be as affordable as conventional fuels are today.