Ships not so much in terms of long distance bulk transport.
Here’s the thing: our entire world economy is based on fossil fuel extraction. There is no way to make slight changes to the current system and still have all the benefits of it, but just remove the burning fossil fuels part. The entire system has to change. It can be changed, but it’s going to take a lot more than just putting batteries in things.
There has been research in biofuels for aviation use. Of course, that brings up the question of how to divvy up land for biofuels vs. food production. And that ignores the issue of CO2 used in the production of said biofuels, even if they are theoretically carbon-neutral.
To my previous point: the way that the world economy works is that it is cheaper to make stuff in China and ship it to Copenhagen than it is to make the same stuff in Denmark and drive it to Copenhagen. Because fossil fuel is so cheap, it is way easier for your product to have a bigger carbon footprint than to produce it locally.
The way to make container shipping carbon neutral is to stop buying things bulk-produced on the other side of the world and bulk-shipped across three oceans. It doesn’t mean shipping things in another way, or using electric trains or electric ships. Making production of goods local (close enough for electric vehicles to deliver) is going to be easier and cheaper than… what? Converting nuclear aircraft carriers into container ships?
But Maersk, a container shipping company, isn’t about to announce “The way to reduce our carbon footprint is for us to go out of business due to lack of demand”.
I used to work for a large main construction contractor. In better times they committed to reduce their carbon footprint. All they did was work with another company which bought the carbon footprint from the one company and recorded it against the other.
Which will happen first? Will China produce less goods, because other countries will start rebuilding their capacity to manufacture?
Or will current systems be retrofitted to reduce their CO2 footprint?
Both options are well overdue.
The UK’s capacity to manufacture has diminished significantly year or year. And is only getting worst, especially now with Brexit.
Other countries are far more capable of reinvesting in manufacturing. Yet, it would be quicker and more effective to start transition modes of transport to electric, and also investing in more renewable energy sources.
Those things can happen today, with immediate positive effects. Not that it will solve every problem. However it will be the quickest and most achievable thing literally everyone country can do because the technology is more accessible than ever.
I still don’t think this is thinking broadly enough. The only reason we can afford the massive consumption we enjoy at the moment is due to fossil fuels. It’s cheap. It powers everything cheaply.
There doesn’t need to be a change from “buy however much of whatever we feel like as quickly and easily as possible from China” to “buy however much of whatever we feel like as quickly and easily as possible from the country next door”. More like “buy exactly how much we need of only what we need as far in advance as possible with as little waste as possible from as near by as possible”. And then make sure that is powered by carbon neutral electricity.
At least we’re not increasing the oxygen levels, I’d hate to live in a world with dragonflies the size of crows, centipedes that are 3 feet long, and scorpions two feet long … just no.
I for one am still hopeful that enough of us will get our heads out of our asses soon enough that we can slow down, stop, and maybe even reverse this problem. The kernel of the necessary tech is there, it just needs to be developed more.