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Comment Re:Stationary Grid Battery (Score 1) 76

That requires a lot of batteries, and will take time to create and plug in. Storing large amounts of energy is difficult, and the excess must be handled immediately.

Wind and solar power fluctuate a lot. So when electricity production is high the price drops, and the producer has to choose between stopping production, which is difficult, or selling at a negative price.

This has led to negative prices for electricity generation becoming more common in the US and Europe. Negative electricity prices mean that energy producers pay money to supply the extra energy. But what we see here in the UK is that grid operators sometimes pay producers to turn off production, which is expensive.

What happens to consumers of negatively priced energy? Most, not all, consumers have fixed-price contracts and are not directly effected. In Northern Europe, many have contracts that reflect fluctuating production prices. Prices still are positive, and not free, due to other costs. But it should hopefully lead to better consumption habits, such as charging electric cars when prices are low.

Comment Re:The question is... (Score 1) 339

It is not uncommon for the rich to help the poor. For the proportion of GNI given in foreign aid by the OECD to members, see: https://en.wikipedia.org/wiki/...

The largest DAC donor, Luxembourg, gives 1.05% while the US gave a modest 0.22%, before stopping 90% of that.

China gives 0.36% and India 0.65%.

Comment Re: And, the obvious ways to address this are ign (Score 1) 128

Expensive? Absolutely, it cost billions of euros, and they have been at it for 700 years.
And worldwide, 110 million people live under the sea level, protected only by walls, and about 10% lives near the sea. The sea level rise by 29-59 cm as predicted by the end of the century, will have serious effect on small islands and many coastal cities and areas.

Comment Re:Pills Won't Stop Your Sin (Score 1) 181

Until they can point to specific genes as well as what triggers those genes to become active, genetic claims are usually suspect.

I didn't claim it was all genetics.

About 400 scientist have investigated about a quarter million people and found 32 places in our DNA connected to obesity. Not everything is understood yet, but they expect to be able to create medicine against obesity, and maybe able to give advice to people concerning food and behavior after scanning their genes.

Comment Re:Pills Won't Stop Your Sin (Score 1) 181

Obesity is partially, but not only genetics.

Twin studies have consistently shown that genetics account for 40% to 70% of the variation in body mass index (BMI) across individuals (Loos & Yeo, 2022). It is likely that in each person a number of genes contribute to the likelihood of developing obesity in small part, with each gene increasing or decreasing the odds marginally, and together determining how an individual responds to the environmental factors.

- https://en.wikipedia.org/wiki/...

Comment Re:This is a *good* problem to have (Score 1) 178

True, but to be a little clearer:
Europe has a deregulated market for electricity, which flows over national borders. Both Norway and Sweden usually produce more than they consume, but sometime import. And while Norway produces most electricity from hydro, it also gets a bit from wind and Sweden produces about 40% from hydro and significant amounts from nuclear and wind.

Comment Re:Planet Nine? (Score 2) 149

For those of you confused by this debate, Pluto was reclassified from a planet to a dwarf planet in 2006, when the International Astronomical Union came up with three requirements for an object to be classified as a planet. Pluto did not meet the third criterion, but there has been debate among astronomers about that, with some arguing that geology should be taken into account. But as far as I know, the IAU still stands by the 2006 definition.

Comment Re:Oooh... (Score 1) 521

The United States has a sales tax, which is only added to sales at the end of the supply chain to end consumers.
European countries on the other hand have VAT (value-added tax), which is collected by all sellers in each stage of the supply chain, suppliers even of raw materials, manufacturers, distributors, and retailers.

Comment Re: Government Sponsored Research (Score 2) 265

Almost all modern economic systems in the world today are mixed economies. It is a middle ground between pure capitalism and socialism, with parts of both market forces and government intervention. Countries with mixed economies include UK, France, USA, India, ... Even China has 20% of its economy as private enterprise.

Comment Hybrit (Score 1) 59

Work on H2 Green Steel has been ongoing a while in norther Sweden.

H2 Green Steel will be a large-scale steel producer based on a fossil-free manufacturing process targeting large European OEMs. ... The project includes a giga-scale green hydrogen plant as an integrated part of the steel production facility. Production will begin in 2025 and by 2030, H2 Green Steel will have annual production capacity of five million tons of high-quality steel.

- https://stegra.com/news-and-st...

It is based on Hybrit, world’s first fossil-free steel production, completed in 2020. It used hydrogen, which is split from water in electrolysis.

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