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Showing results 1 to 48 of 48
Search took 0.07 seconds. Search: Posts Made By: hazel
Forum: General 05-01-2024, 07:10 AM
Replies: 808
Views: 25,009
Posted By hazel
There was a British Rail slogan about booking...

There was a British Rail slogan about booking holidays: "It's better, remember, in June and September." Of course families with children couldn't take advantage of that. They had to holiday during...
Forum: General 04-30-2024, 07:07 AM
Replies: 808
Views: 25,009
Posted By hazel
You might say the same about the religious thread.

You might say the same about the religious thread.
Forum: General 10-19-2023, 01:54 AM
Replies: 808
Views: 25,009
Posted By hazel
Here's...

Here's (https://www.euronews.com/green/2023/10/14/flooded-and-forgotten-how-europe-s-disused-coal-mines-could-help-heat-our-homes?utm_source=pocket-newtab-en-gb) an interesting article on a new green...
Forum: General 08-27-2023, 06:29 AM
Replies: 808
Views: 25,009
Posted By hazel
I've noticed a lot of confusion in the last weeks...

I've noticed a lot of confusion in the last weeks between the reasons wildfires start and the way they behave afterwards. Many people seem to think that if the fires were started by arsonists, that...
Forum: General 08-15-2023, 04:44 AM
Replies: 808
Views: 25,009
Posted By hazel
It's not that simple. The frontier between...

It's not that simple. The frontier between science and pseudoscience is a rather porous one and ideas tend to move in both directions (though afterwards everyone keeps quiet about it and pretends it...
Forum: General 08-10-2023, 05:51 AM
Replies: 808
Views: 25,009
Posted By hazel
You're actually talking about sulphur dioxide...

You're actually talking about sulphur dioxide (SO2). Sulphur is a solid. I did a quick google and found this (https://naei.beis.gov.uk/overview/ghg-overview). Sulphur dioxide is described as an...
Forum: General 07-17-2023, 12:45 PM
Replies: 808
Views: 25,009
Posted By hazel
This is the well-known problem of exponential...

This is the well-known problem of exponential growth. It starts small and then accelerates. When anthropogenic global warming was discovered in the 1970's, the rate of warming was so small that it...
Forum: General 07-17-2023, 09:46 AM
Replies: 808
Views: 25,009
Posted By hazel
You can't say they didn't warn us!

You can't say they didn't warn us!
Forum: General 06-29-2023, 04:37 AM
Replies: 808
Views: 25,009
Posted By hazel
As Business_kid says, it may be too late to deal...

As Business_kid says, it may be too late to deal with the problems now without hopelessly impoverishing ourselves. But the irony is that we could have dealt with them easily when global warming was...
Forum: General 06-27-2023, 09:41 AM
Replies: 808
Views: 25,009
Posted By hazel
Any renewable energy system needs what is called...

Any renewable energy system needs what is called baseload energy: a form of energy that can fill the gaps when the sun isn't shining and the wind doesn't blow. And there are really only two...
Forum: General 05-06-2023, 09:35 AM
Replies: 808
Views: 25,009
Posted By hazel
In one sense that's old technology. Heat exchange...

In one sense that's old technology. Heat exchange is used by all modern boilers, including mine. The hot exhaust fumes from the gas burners are used to warm up the tepid water coming back from the...
Forum: General 04-18-2023, 08:43 AM
Replies: 808
Views: 25,009
Posted By hazel
Where do they get the hydrogen from? It's only...

Where do they get the hydrogen from? It's only clean if the hydrogen is made by electrolysis using solar or hydroelectricity.
Forum: General 03-08-2023, 04:34 AM
Replies: 808
Views: 25,009
Posted By hazel
Yes and no. Each of the climate "tipping points"...

Yes and no. Each of the climate "tipping points" represents a particular system going out of equilibrium. For example:

1) Sea ice melts in the arctic, exposing dark water which absorbs sunlight...
Forum: General 01-24-2023, 10:56 AM
Replies: 808
Views: 25,009
Posted By hazel
The problem with solar and wind energy is that...

The problem with solar and wind energy is that they are intermittent. What do you do when the sun doesn't shine and the wind doesn't blow? Actually with wind turbines, it's a double whammy because...
Forum: General 01-23-2023, 04:14 AM
Replies: 808
Views: 25,009
Posted By hazel
Small modular reactors are like nuclear fusion....

Small modular reactors are like nuclear fusion. They're only 10 years away and always will be.

But I agree that some form of nuclear energy is necessary in the green mix to provide baseline...
Forum: General 01-19-2023, 06:20 AM
Replies: 808
Views: 25,009
Posted By hazel
That doesn't surprise me. Most of these credits...

That doesn't surprise me. Most of these credits are earned by "planting forests". But of course, the company that produces the carbon doesn't plant them itself; it pays another company to do so and...
Forum: General 11-21-2022, 11:00 AM
Replies: 808
Views: 25,009
Posted By hazel
I found this article...

I found this article (https://www.wired.com/story/cloud-data-storage-climate/) on the environmental damage caused by "cloud" servers. It's an eye-opener.
Forum: General 11-07-2022, 06:38 AM
Replies: 808
Views: 25,009
Posted By hazel
I have a very cynical attitude to the whole COP...

I have a very cynical attitude to the whole COP process. The Paris Agreement was what's called a strong weak agreement: strong because everyone signed up to it but weak because it didn't actually...
Forum: General 10-12-2022, 04:39 AM
Replies: 808
Views: 25,009
Posted By hazel
Those stones weren't put into the river bed by...

Those stones weren't put into the river bed by men. They were carried down by glaciers (the only force large enough to shift them) at the end of the ice age and they sat at the bottom of the river...
Forum: General 10-08-2022, 07:05 AM
Replies: 808
Views: 25,009
Posted By hazel
One of the chief problems is that what is a...

One of the chief problems is that what is a sacrifice of convenience for you and me is a matter of survival for a lot of poorer people. I don't know what's happening in Ireland but here in the UK,...
Forum: General 09-14-2022, 05:58 AM
Replies: 808
Views: 25,009
Posted By hazel
Have you any idea how long it takes to build a...

Have you any idea how long it takes to build a nuclear power station? We don't have that time any more. Worse still, we have lost the practical knowledge of how to construct one. That's why the last...
Forum: General 03-09-2022, 05:14 AM
Replies: 808
Views: 25,009
Posted By hazel
I don't believe in nuclear fusion. That isn't...

I don't believe in nuclear fusion. That isn't even tomorrow's tech. It's the day after tomorrow and has been for fifty years. Thorium reactors look much more like a practical option.
Forum: General 03-09-2022, 04:21 AM
Replies: 808
Views: 25,009
Posted By hazel
A properly functioning green energy system needs...

A properly functioning green energy system needs nuclear reactors to provide what's called baseload. The problem is that early nuclear reactors weren't very safe and events like Chernobyl and...
Forum: General 03-07-2022, 11:29 AM
Replies: 808
Views: 25,009
Posted By hazel
I seem to be doing most of that already, except...

I seem to be doing most of that already, except for the first! I like meat and intend to go on eating it, but I buy mostly chicken because it's cheaper; coincidentally it also creates less CO2 than...
Forum: General 11-10-2021, 09:06 AM
Replies: 808
Views: 25,009
Posted By hazel
Yes, and it's caused quite a few mass extinctions...

Yes, and it's caused quite a few mass extinctions too, particularly the huge one at the end of the Permian. It's not the kind of thing you want to have to live through.
Forum: General 11-07-2021, 10:33 AM
Replies: 808
Views: 25,009
Posted By hazel
That's precisely why we need a national programme...

That's precisely why we need a national programme of retrospective insulation of old housing stock. Most of the people who live in these houses can't afford to insulate them, so the country as a...
Forum: General 11-07-2021, 09:45 AM
Replies: 808
Views: 25,009
Posted By hazel
I hate to say anything in favour of Insulate...

I hate to say anything in favour of Insulate Britain, because they are the biggest load of idiots that I have ever seen. But the one thing about them which is not idiotic is their name. We really...
Forum: General 11-02-2021, 08:36 AM
Replies: 808
Views: 25,009
Posted By hazel
Cop26 is a farce. All those oligarchs flying in...

Cop26 is a farce. All those oligarchs flying in on their private jets! Biden with an escort of 60 limousines! Bill Gates arriving by private helicopter from his petrol-driven private yacht. And Jeff...
Forum: General 10-27-2021, 04:51 AM
Replies: 808
Views: 25,009
Posted By hazel
Unfortunately that's a recipe for doing nothing...

Unfortunately that's a recipe for doing nothing about any problem ever! Vested interests will always say, "Give me unambiguous proof and then I'll act." But science doesn't provide unambiguous proof....
Forum: General 10-26-2021, 05:02 AM
Replies: 808
Views: 25,009
Posted By hazel
The bitter irony is that global warming through...

The bitter irony is that global warming through CO2 emissions was discovered in the 1970's. If the warning had been generally believed at that time, we would have needed only small adjustments to our...
Forum: General 10-23-2021, 11:05 AM
Replies: 808
Views: 25,009
Posted By hazel
The market solves all problems eventually. The...

The market solves all problems eventually. The trouble is, it takes a long time to do it and we don't have that time.

Yes, companies are belatedly realising that far-flung supply chains make them...
Forum: General 10-15-2021, 11:59 AM
Replies: 808
Views: 25,009
Posted By hazel
There is such a thing as having such an open mind...

There is such a thing as having such an open mind that your brain falls out.
Forum: General 10-02-2021, 10:28 AM
Replies: 808
Views: 25,009
Posted By hazel
One major problem is the disconnect between...

One major problem is the disconnect between carbon emissions per head and total national carbon emissions. They are almost totally opposed. The greatest emissions per head occur in the US and Western...
Forum: General 09-11-2021, 09:17 AM
Replies: 808
Views: 25,009
Posted By hazel
No, what they usually mean is "Gaia", the living...

No, what they usually mean is "Gaia", the living planetary system, not just the rocky core on which it is built. And the point I was making is that Gaia can do very well without us and did so in the...
Forum: General 09-11-2021, 05:55 AM
Replies: 808
Views: 25,009
Posted By hazel
Good point. There is a crisis coming down the...

Good point. There is a crisis coming down the line, but it's for us, not for the planet. All this talk about saving the planet is poppycock. The earth has been through hot times before and is quite...
Forum: General 08-19-2021, 04:58 AM
Replies: 808
Views: 25,009
Posted By hazel
The gulf stream did switch off briefly in the...

The gulf stream did switch off briefly in the late 16th century. The result was a mini European ice age that lasted for a couple of centuries. The Thames froze solid in winter and fairs were held on...
Forum: General 08-12-2021, 12:05 PM
Replies: 808
Views: 25,009
Posted By hazel
I don't ever remember this combination of...

I don't ever remember this combination of record-breaking temperatures, uncontrollable forest fires, and crazily excessive rainfall in several parts of the world simultaneously. Things like that used...
Forum: General 08-10-2021, 10:34 AM
Replies: 808
Views: 25,009
Posted By hazel
I think we're already there. Think of all the...

I think we're already there. Think of all the extra carbon those forest fires are pumping into the atmosphere.
Forum: General 08-09-2021, 09:53 AM
Replies: 808
Views: 25,009
Posted By hazel
It's not just a technical issue. There are...

It's not just a technical issue. There are several political problems that have to be engaged with if we are going to have any hope of coming out of this alive.

1) If we try to discourage the...
Forum: General 08-08-2021, 05:37 AM
Replies: 808
Views: 25,009
Posted By hazel
I've never had one. Never learned to drive. ...

I've never had one. Never learned to drive.

Inapplicable

Don't have one. I have an old-fashioned mobile which I almost never use.

I switch things off when I'm not using them.

Probably...
Forum: General 08-04-2021, 07:24 AM
Replies: 808
Views: 25,009
Posted By hazel
Nice to know that Britain will be one of the...

Nice to know that Britain will be one of the survivors!
Forum: General 07-07-2021, 11:20 AM
Replies: 808
Views: 25,009
Posted By hazel
The most convincing theory is that of...

The most convincing theory is that of Milankovich. He showed that the superimposition of several different astronomical cycles causes periodical vulnerability to ice ages. Whether an ice age actually...
Forum: General 07-07-2021, 05:51 AM
Replies: 808
Views: 25,009
Posted By hazel
That's an imortant point. When harmful viruses or...

That's an imortant point. When harmful viruses or bacteria multiply inside our bodies, we throw a fever to burn them out. It looks as if Mother Nature does the same.
Forum: General 07-05-2021, 09:37 AM
Replies: 808
Views: 25,009
Posted By hazel
Yes, of course there is. You use a steam-powered...

Yes, of course there is. You use a steam-powered dynamo. It's how most power stations work at the moment. The steam is produced either by burning carbon fuels or by cooling a nuclear pile. And it's...
Forum: General 07-04-2021, 02:18 AM
Replies: 808
Views: 25,009
Posted By hazel
I don't like the idea of relying on fission for...

I don't like the idea of relying on fission for another reason. Even if the reactors are safe, they still generate long lasting radioactive waste, which we will be essentially handing on to our...
Forum: General 07-03-2021, 12:17 PM
Replies: 808
Views: 25,009
Posted By hazel
Actually dinosaurs were pretty smart. That's why...

Actually dinosaurs were pretty smart. That's why they lasted so long. Their brains were small by mammalian standards because their nervous systems were arranged like those of modern birds: a large...
Forum: General 07-03-2021, 07:25 AM
Replies: 808
Views: 25,009
Posted By hazel
The problem is that we have now entered the world...

The problem is that we have now entered the world of feedback loops. For example:

1) Melting of white sea ice exposes darker water which absorbs more heat, which leads to more melting.
2)...
Forum: General 07-01-2021, 08:42 AM
Replies: 808
Views: 25,009
Posted By hazel
The problem is the second law of thermodynamics....

The problem is the second law of thermodynamics. You can't concentrate dispersed energy without doing some kind of work (which takes energy!). Once energy has been dispersed into the vastness of the...
Showing results 1 to 48 of 48

 

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