Is there any hope at all?

There are some extraordinary things happening in the renewables space.

1. Solar power is up a lot (it varies by country) almost everywhere.  The cost of solar continues to decline, and because the cost of storage is plunging, "firming" solar electricity is becoming easier and cheaper.

2. CATL has introduced improved sodium-ion batteries. Sodium is roughly 1/5th as costly as lithium, so sodium-ion batteries will be much cheaper than lithium-ion. They also have a much longer life, theoretically allowing cars to travel 3 million miles before the batteries wear out. These new batteries will have 10,000 cycles, which will mean that even if they are charged and discharged 100% every day, they will still last 27 years.  Fantastic for stationary (grid) storage.  

3. EVs continue to make up an ever larger proportion of total car sales. In China, 1/3rd of the world's car market, they are +-50%, heading straight towards 100%. EVs (from China) now have the same sticker price as petrol cars. For example, here in Oz, the cheapest BYD Dolphin costs the same as the cheapest petrol Toyota Corolla. As battery prices plunge, EVs are only going to become ever more attractive.


Emissions from land transport and electricity generation are just under 50% of total global emissions. It seems plausible that these will have nearly ended by 2040, putting us halfway down the road to zero emissions. We need to do more (stop eating red meat, replace gas/oil heating with heat pumps/electrical heating, fix cement, steel and air travel, stop land clearing) to bend that curve towards a better outcome, but for the first time in years, I feel optimistic that we at last have a chance of avoiding catastrophic climate change.  

What can you do to help?  You can cut your personal emissions, by as much as 20-30%, by becoming vegetarian, or at least, stopping eating beef and mutton, and not using milk.   If mankind did that, we would cut emissions by +-70%, adding together the decline in emissions from agriculture and transport and electricity generation.  The more we cut emissions, the sooner temperatures will stop rising.

It has been possible to argue that anything we do is pointless, because China's emissions have just kept on rising.  But this year, or next, China's emissions, as the country installs more and more solar, and EV sales continue to explode, will peak and start falling, and that particular excuse for inaction will disappear.

Let's do this.