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Cont: Global warming discussion V

Here's a slightly different take on a big way to help address climate change.

Energy efficiency guru Amory Lovins: ‘It’s the largest, cheapest, safest, cleanest way to address the crisis’

Really short version that sorta sums up the premise by focusing on one example?

Lovins fears that design has been chopped into little bits and we are losing the bigger energy picture that the Victorians had. In a recent podcast with the UK energy adviser Micheal Liebreich, he explains how savings of 80% and more can be made in the least expected areas. As an example he shows that far less energy is needed to pump heat or cold through fat, straight pipes than skinny, long and crooked ones, because there is less friction.

“In our house we save 97% of the pumping energy by properly laying out some pipes. Well, if everyone in the world did that to their pipes and ducts, you would save about a fifth of the world’s electricity, or half the coal-fired electricity. And you get your money back instantly in new-build or in under a year typically in retrofits in buildings and industry.”

And yet, he says, this sort of energy efficiency is not taught, and it’s certainly not in any government study or climate model. Why not? “Because it’s not a technology. It’s a bloody design,” he says.

Highlighting mine.
 
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Here's a slightly different take on a big way to help address climate change.

Energy efficiency guru Amory Lovins: ‘It’s the largest, cheapest, safest, cleanest way to address the crisis’

Really short version that sorta sums up the premise by focusing on one example?



Highlighting mine.


The energy required to circulate air is much less than the energy required to heat or cool the air in the first place. Furthermore the wast energy takes the form of heat, so when the objective is heating none of that energy is wasted as it's still producing the desired effect.
 
The energy required to circulate air is much less than the energy required to heat or cool the air in the first place. Furthermore the wast energy takes the form of heat, so when the objective is heating none of that energy is wasted as it's still producing the desired effect.

When it is, perhaps. To poke at the beginning of the article, though...

Temperatures dropped far below freezing this week in Snowmass, Colorado. But Amory Lovins, who lives high up in the mountains at 7,200ft above sea level, did not even turn on the heating.

That’s because he has no heating to turn on. His home, a great adobe and glass mountainside eyrie that he designed in the 1980s, collects solar energy and is so well insulated that he grows and harvests bananas and many other tropical fruits there without burning gas, oil or wood.

He seems to get by just fine with less waste heat under below freezing conditions.
 
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Good news, everyone! Well, except for people in the coal mining industry, I guess.

Australia’s coal export boom forecast to end abruptly amid big drop in demand from China

Study finds Chinese consumption will fall within two to three years as Australian coalmining communities warned to reduce dependence on industry


Australia’s coal export boom will come to an abrupt end because of an “imminent and substantial” drop in purchases by China, and local coalmining communities should brace for the change, the lead author of a new study says.

The peer-reviewed paper, published on Thursday in the journal Joule, forecasts China’s thermal coal imports will contract at least a quarter from 2019 levels of 210m tonnes by 2025, mostly as improved transport links will give local suppliers an edge.

If China pursues more ambitious efforts to cut carbon emissions, the decline will be almost twice as fast, with imports sinking to 115m tonnes by 2025. Shipments of coking coal used in steelmaking face a similar downward trajectory, the researchers found.

The study used satellite and other data sources to compile a more detailed picture of individual power and steel plant coal demand. It also analysed how new transport links have expanded supplies from inland Chinese provinces and Mongolia to coastal users, supplanting Australian and Indonesian exporters.

“This was actually somewhat of a surprising outcome for us,” said Jorrit Gosens, a researcher at the Australian National University’s Crawford School of Public Policy and the report’s lead author.

“China reducing imports of thermal coal and coking coal by roughly a quarter over the next five years, that’s a major drop and not something that is far off into the future.”
 
Just listening to BBC
India is importing coal to run air conditioners to combat a heat wave caused by global warming caused by burning coal.
What could go wrong?
 
Just listening to BBC
India is importing coal to run air conditioners to combat a heat wave caused by global warming caused by burning coal.
What could go wrong?

Yet, having 17% of the world's population, India only contributes 8% of global GHG emissions yearly, adding up in two centuries to a 3% of the whole problem. How much did and do contribute the US and the UK?

Anyway, everybody knows that coal shouldn't be burnt for air conditioner to work but for bitcoins to be mined.
 
BHP announces plans to close NSW's largest coal mine at Mt Arthur by 2030

Mining giant BHP has failed to find a buyer for New South Wales' largest coal mine, and will close the operation in 2030.

The company spent two years trying to sell its Mt Arthur operation in the state's Hunter Valley, which employs 2,000 people.

The mine, near Muswellbrook, is approved to operate until 2026, but BHP has told the ASX it would apply to extend that until 2030.

After that, it will close.

Rehabilitation of the site is expected to take 10 to 15 years.

The mine's pit was today shut temporarily while employees were informed of the decision.

BHP's minerals president Edgar Basto said the company had reviewed potential options for the mine, including divestment and future investment requirements.

"Seeking approval to continue mining until 2030 avoids closure in 2026 and enables BHP to balance the value and risk of those considerations and our commitments to our people and local communities," he said.

The mine was once valued at $2 billion, but that has been progressively slashed.

After a write-down last year, BHP said the mine was worth nothing, once rehabilitation obligations were factored in.
 
Anyway, everybody knows that coal shouldn't be burnt for air conditioner to work but for bitcoins to be mined.

I seem to recall reading somewhere that mining of bitcoins is so energy-intensive, that it's worse than actual mining for minerals, etc.


This story doesn't mention the words climate change or global warming, because it's happening in Republican country, but I have to wonder if anyone will figure it out:

Thousands of Cattle Reported Dead

The current heat wave blazing through Kansas feedlots has killed an estimated 10,000 head of fat cattle.

Final death numbers continue to come in, but that early estimate was shared with DTN by livestock experts, who put the geographical center point for those deaths at Ulysses, Kansas.

ETA: here's what it looks like:

https://www.reddit.com/r/WTF/comments/vd5dan/thousands_of_cows_found_dead_in_kansas/
 
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Yet, having 17% of the world's population, India only contributes 8% of global GHG emissions yearly, adding up in two centuries to a 3% of the whole problem.
So far.

But everything so far is water under the bridge. We can't undo what we did, we can only try to not make it any worse. India has a chance to not pollute like we did. But will they take it? Their population is exploding and they want a more affluent lifestyle. In a few years they could be bigger polluters than China, if they don't plan to avoid it.
 
I seem to recall reading somewhere that mining of bitcoins is so energy-intensive, that it's worse than actual mining for minerals, etc.


This may help

"How much energy? Bitcoin, the world’s largest cryptocurrency, currently consumes an estimated 150 terawatt-hours of electricity annually — more than the entire country of Argentina, population 45 million. Producing that energy emits some 65 megatons of carbon dioxide into the atmosphere annually — comparable to the emissions of Greece — making crypto a significant contributor to global air pollution and climate change."
Source:
https://news.climate.columbia.edu/2022/05/04/cryptocurrency-energy/
 
So far.

But everything so far is water under the bridge. We can't undo what we did, we can only try to not make it any worse.


Can't we? Carbon dioxide from fosile fuels thrown into the atmosphere in 1985 enters entirely into the oceans this year, so to speak. Why does old carbon dioxide from the US and the UK have a priority over the new one spewed by India? Make room for others, please.
India has a chance to not pollute like we did. But will they take it? .


Who's footing the bill? Are the old polluters contributing a big chunk of the cost or is it supossed that India will do it out of the goodness of their hearts?

Their population is exploding and they want a more affluent lifestyle. In a few years they could be bigger polluters than China, if they don't plan to avoid it.

So what? They have and always have had about a sixth of the Earth's population. Admonish them when they surpass that mark in the yearly budget. And keep in mind they won't be able to reach a sixth of the historical pie chart because PREVIOUS MISCONDUCT OF OTHERS HAVE PREVENTED THEM FOR SO DOING.

I used to generate 7 tons of carbon dioxide each winter just for myself to warm my home and enjoy plenty of hot water. I reduced It to 1.5 tons now and can't go any further without getting chilblained. Each one has a compromise to accept and an obligation yo avoid any lets-gather-courage-and-make-them-do-it approach.
 

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