
Timothy Walker
Botanist
9
APPEARANCES
3
PODCASTS
012
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Oct 20, 2026
Steady finances, growing risks ahead of SA's MTBPS & Experts predict end of reliance on Hormuz
13:05
T
11:17Timothy WalkerGUEST
Yeah, the risk of stranded assets, considering that these are decade-long investments in the infrastructure we're talking about, if it's pipelines or port infrastructure, even things like road connections, rail connections around that, the likelihood that they could be stranded is rather high, especially although we do have a rather uneven energy transition underway at the moment, and there's a lot of speculation obviously around whether that will get cheaper and whether there'll be an uptake of green technology and resources in other parts of the world.
T
11:52Timothy WalkerGUEST
But you've also got that to consider, the fact that perhaps we're moving away from fossil fuels and oil as well.
T
11:57Timothy WalkerGUEST
So the very assets which would be invested in to export this energy to the world, the rest of the world is starting to move away from as well.
T
12:08Timothy WalkerGUEST
But the kind of investments required, the kind of timeframes, I think, is a lot longer than five years.

Stephen GrootesHOST
If you're going to make all of these big investments to try and make the Strait of Hormuz redundant, wouldn't those on-land installations, no matter where they are, be vulnerable to that kind of attack too? We're talking about people who have control of rockets.
Experts predict end of reliance on Strait of Hormuz
1:47
3:45

Stephen GrootesHOST
And isn't that really the fundamental problem it's about? Do you invest the capital or not? And for the moment, it probably wouldn't be rational to.
T
1:57Timothy WalkerGUEST
Yeah, the risk of stranded assets here, considering that these are decade-long investments in the infrastructure we're talking about, if it's pipelines or port infrastructure, even things like road connections, rail connections around that, the likelihood that they could be stranded is rather high, especially although we do have a rather uneven energy transition underway at the moment.
T
2:22Timothy WalkerGUEST
And there's a lot of speculation, obviously, around whether that will get cheaper and whether there'll be an uptake of green technology and resources in other parts of the world.
T
2:32Timothy WalkerGUEST
But you've also got that to consider, the fact that perhaps we're moving away from fossil fuels and oil as well.
T
2:36Timothy WalkerGUEST
So the very assets which would be invested into exports this energy to the world, the rest of the world is starting to move away from as well.

Stephen GrootesHOST
If you're going to make all of these big investments to try and make the Strait of Hormuz redundant, wouldn't those on-land installations, no matter where they are, be vulnerable to that kind of attack too? We're talking about people who have control of rockets.
Standard Bank hits record R26.1bn half-year earnings and CPT port gears up for fruit export peak
26:41
29:15

Stephen GrootesHOST
I mean, there seems to be a big oil slick there as well, which is spreading, and that must be the result of some kind of successful attack by Iran.
T
26:49Timothy WalkerGUEST
The, um, off the, uh, south coast of Oman, a ship which was, uh, sanctioned called the Caroline Bazingui, uh, unfortunately, um, uh, flagged by Cameroon, uh, falsely flagged.
T
27:02Timothy WalkerGUEST
Uh, the Cameroonian, uh, government realized that its, uh, shipping registry was being exploited, and it, uh, kicked the vessel out.
T
27:09Timothy WalkerGUEST
Uh, because it was loading Russian oil, it, uh, and subject to sanctions from the United States and the European Union, its insurance is effectively rendered null, and its insurance, such as it might have had, might have only existed really on paper, maybe a Russian insurance company, uh, saying that if anything happens, we'll cover the cost.

Stephen GrootesHOST
And it must also be quite expensive to use a whole lot of smaller vessels when y-- I mean, people used to use one for a reason.
Oil’s new normal beyond Hormuz
3:03

Stephen GrootesHOST
I mean, there seems to be a big oil slick there as well, which is spreading, and that must be the result of some kind of successful attack by Iran.
T
3:11Timothy WalkerGUEST
Yeah, off the south coast of Amman, a ship which was sanctioned called the Caroline Bazingi Unfortunately, flagged by Cameroon, falsely flagged, the Cameroonian government realized that its shipping registry was being exploited and it kicked the vessel out.
T
3:32Timothy WalkerGUEST
Because it was loading Russian oil and subject to sanctions from the United States and the European Union, its insurance is effectively rendered null and its insurance, such as it might have had might have only existed really on paper maybe a russian insurance company uh saying that if anything happens we'll cover the cost now this has happened uh nobody's actually claimed responsibility for this attack uh but the oil the ship has been drifting for several several weeks there is a salvage company currently trying to um to do something about it but the costs could be astronomical this is actually in a marine protected area quite important for amman uh among sea life so The risk of this actually getting worse, the cost it could have, and who bears that cost, are substantial.
T
4:18Timothy WalkerGUEST
And this is, like I say, in Amman, this is actually south of the Strait of Hormuz.
T
4:22Timothy WalkerGUEST
But the risk of another vessel like this being attacked, even one of those smaller vessels, and even though I say small vessels, they are substantial in terms of the hundreds of thousands of barrels of oil they can carry.
T
4:35Timothy WalkerGUEST
If something like that were to happen, the risk, the cost could be astronomical.
Iran-Oman talks could redefine access to the Gulf & SA citrus exports hold firm amid Middle East war
9:40
T
5:30Timothy WalkerGUEST
Uh, yes, the, the only real way Iran is able to exer-- uh, uh, ex-- um, extract some kind of, uh, fee, it's talked of at the moment.
T
5:39Timothy WalkerGUEST
At the moment, uh, the, the deal, as I understand it, talks of, uh, of, of no fees being, uh, levied on any ships for about sixty days.
T
5:47Timothy WalkerGUEST
Very similar, very similar to the United States MOU with Iran, uh, of, of a few weeks ago, which I know has been, um, sort of, uh, President Trump has, uh, has been tearing up or, or trying to tear up in some respects.

Stephen GrootesHOST
You're suddenly going to have issues like that and bigger powers, [clears throat] think China, thinking, "Well, if they can do it, so can we, and the US will let us."
Iran-Oman talks could redefine access to the Gulf
3:51

Stephen GrootesHOST
so the risk i imagine for the shipping community is that um i mean there's been some analysis and some reporting in the u.s it can be quite difficult to know where you are with reporting in the u.s because some of it's very pro-trump and some of it's very against him um that trump is actually desperate for a deal he just wants this to end which which would be rational to assume that so the risk then is that he takes a bad deal yeah
T
4:13Timothy WalkerGUEST
absolutely the um 160 days in, it's enough time to reflect on the reasons why the United States launched its attack and Iranians chose to react in the way they did.
T
4:27Timothy WalkerGUEST
And the conflicting signals, the ambiguity of listening to the president and some of his spokespeople and government officials complicates that tremendously.
T
4:37Timothy WalkerGUEST
There does seem to be, in a way, two parallel negotiation processes going on.
T
4:42Timothy WalkerGUEST
There is the actually existing one between what's going on with Iran and Oman right now, which does seem to be heading towards some kind of regional agreement.
T
4:50Timothy WalkerGUEST
I'm not quite sure still how Saudi Arabia and the other Gulf states will agree to this.
Novo wins court fight over weight-loss drugs & PIC sends Acapulco deal to SIU
31:43

Stephen GrootesHOST
How do you get something like that through what I imagine was a very narrow stretch of water right off a coast without anyone seeing you?
T
31:56Timothy WalkerGUEST
Yes, it's a, a dark vessel is something which has really, uh, burst into the kind of maritime security analysis scene in the last, uh, last few years.
T
32:06Timothy WalkerGUEST
It's a very narrow stretch of water through which these ships have been passing.
Oil flows despite Hormuz “Closure”
0:39
2:51

Stephen GrootesHOST
How do you get something like that through what I imagine was a very narrow stretch of water right off a coast without anyone seeing you? Good evening,
T
0:52Timothy WalkerGUEST
Yes, a dark vessel is something which has really burst into the kind of maritime security analysis scene in the last few years, really threading the needle.
T
1:02Timothy WalkerGUEST
As you mentioned, it's a very narrow stretch of water through which these ships have been passing, only a few nautical miles north of the coast of Iran as they go through the Strait of Hormuz.
T
1:11Timothy WalkerGUEST
And what going dark mostly refers to is that most ships of a certain size, so we're talking about 300 tons or more, have to carry a an automated identification system, a transponder, which automatically broadcasts their location and their name and their details every few minutes.

Stephen GrootesHOST
um and so you could literally use something very old or very slow to bring it down which i'm presuming means that the u.s must be providing some kind of as you say a drone security or something really quite impressive because so much hinges on this i mean if iran can keep the straight closed they win if the u.s can keep it open they win it is to my mind at least that simple we're
April 5, 2025 – PBS News Weekend full episode
18:58

Pamela WattsCORRESPONDENT
That discussion led to Walker fishing for weather information from the logs of local whaling ships and comparing it to the meteorology in the same coordinates today.
T
19:08Timothy WalkerGUEST
They're going to places where other ships don't go because merchant and, and military ships by the 1650s or so, they're following seaborne highways that they know is the most efficient way to get from place to place.
T
19:22Timothy WalkerGUEST
The whalers are following the whales who go to some of the most remote parts of the world's oceans, and so they're recording weather data in places where we simply don't have any other way of knowing what the weather was like on a particular day at a particular place 150, 200, 250 years ago.
T
19:40Timothy WalkerGUEST
And this kind of information for climate scientists is absolutely priceless.
C
23:40Caroline UmmenhoferGUEST
As we ha- have a better sense of how storms and, um, in particular, wind patterns that are associated with extreme events, um, how they have changed in the past, that gives us, uh, more confidence into how they are going to change in the future.
T
23:57Timothy WalkerGUEST
We can point to data and we can speak to climate skeptics and say, "Yes, this is really happening," and we have to inform ourselves so that we're in a better position to react to a changing climate.
T
24:10Timothy WalkerGUEST
And that's another goal of our project, is to be able to provide the tools for public policy, for homeowners along the coast to be able to deal with what's coming along the path (thunder rumbling) in the 21st century regarding climate change and extreme weather events.