Electrical and heat battery news roundup

In Finland, a so-called sand battery (it is actually full of crushed soapstone) has been built, which is capable of storing around 100MW of heat. The crushed soapstone is a by protudct of a fireplace production factory nearby. It is true that this heat battery is large, with a height of around 13m and width of 15m, but it can in theory be buried in the ground. It takes 2000 tonnes to fill this heat battery, but this is just 40 waste trucks worth.

It will serve as a thermal battery, with pipes running through it. It can be heated in the Summer when there is cheap or even free power, and then water run through pipes in the material can extract the energy in winter, powering a district heating network – greatly reducing the emissions from heating houses in the whole area (it is estimated that it will reduce emissions by 70%)

The Soapstone leftover, was a wasted product, and before was just thrown away, so this is a far better use. This “sand” battery can hold heats of around 500 degrees for months if required, and is thought to completely eliminate the need for oil in the network heating system. it equates to roughly 1 month of heating requirements in summer, and 1 week in winter. Costing around $200,000, compared to $1,600,000 for the equivalent lithium battery, it is a good deal. While it is true that it would take around 30 of these to keep the town going for a year and it only supports 100 houses and a public swimming pool, but there is huge quantities of similar waste created around the globe, and therefore is capable of doing far more than one would think.

Simulations of the same idea, in Seoul have suggested at up to 39% savings. It is thought, that as the deployment of solar increases, there will be huge amounts of excess power to be pumped into things like this. Some countries have wonderful quantities of excess electricity in the summer, and while we need to ramp up the quantity of solar wild and other zero carbon electricity, this gives us a route to a zero carbon world.

UK scientists created the worlds first diamond battery, capable of giving power for thousands of years. It is made from synthetic diamonds, which contain a radioactive element called carbon 14. The battery makes electricity from this radiation, much in the way that solar panels work. This battery would still be at 50% power after 5000 years. From devices that need powering in your body, to deep in the sea or in space.

At the end of their lives, these batteries can go back to the manufacturers to be recycled. There is much work being done on this, not least looking at other radioactive elements, to increase the power output.

Carbon nanotubes store triple the energy of lithium batteries. New research shows that twisted nanotubes can store high densities of energy – triple that of lithium weight for weight. It is thought that these could power things like medical implants. Of course, this is great, though only adds to the potential long list of things that nanotubes can do if we can learn to reliably create them in the future. In bigger sizes, it is calculated that these carbon nanotubes can store 15,000 times more per unit mass, than steel springs.

These are both areas which I write on, regularly, so check back for more news. I should also note, that these roundup articles should allow a return to focusing on wildlife rather than clean tech soon.

Deforestation and palm oil stories: Deforestation is not a desire, there is demand for what is done with the land

Cattle in a newly deforested area on the edge of more Amazon rainforest – threatened in the future? photo credit Alice Mitchel

The problem with stopping deforestation, is that for the majority of the world we are far removed from rainforests (from where I sit in the UK, I would have to travel 3250km (over 2000 miles) to the nearest rainforest, which is an area on mainland India). Indeed, rainforest is generally something that only survives in developing countries.

This means that, for most people, they either live far removed from the rainforest, and so cant see it impacting them, or they live near a rainforest, but are struggling to provide for their family and those around them. It is quite true that many people in both the first and third world would like the rainforest to survive – indeed, should you talk to people in the west, many are very worried about the survival of the great apes, who are rapidly loosing land.

The problem is simple. Those living in the third world are living hand to mouth, so unless they work in tourism, the rainforest is often an inconvenience that makes life harder.

In 2023 a total of 6.4 hectares of forest were destroyed – more than 25,000 square miles. However, more concerning is the fact that 62.6 million hectares of forest (almost quarter of a million square miles) was degraded – for road building, logging, and forest fires. Degraded land is often less good for carbon storage, as well as conservation of the worlds wild species. It is often, then not long, before someone comes along a removes the rest of the plants so that the land can be used for something else.

And what was this deforestation for (other than logs)? Beef, soy, palm oil paper and nickel.

The Brazilian Amazon is one of the bright spots, where since the election of Luiz Inacio Lula da Silva, deforestation has fallen 62%. Unfortunately, in the same time period, Indonesia’s deforestation is up 57%

It seems hard to see how the world will meet its goal of cutting deforestation to zero by 2030 as most countries have pledged. Also, despite reductions in deforestation, the Amazon has had one of the hardest years in terms of forest fires – something that only gets more likely as rainforests are lost, and climate change increases the temperature in many parts of the world. It is a sad fact, that there is often not a great deal of temperature difference between a rainforest which is functioning, and one that dries out and becomes a fire hazard.

Having said all this… a study in Indonesia has found that controlled low-intensity logging doesn’t have to negatively impact a forest in terms of carbon storage or food availability – this in turn means that much wildlife can survive.

The problem often is that if the land is in private hands, then low- intensity logging is not going to happen. If the landowner has decided to deforest, they will raze the land. In national parks, in theory low intensive logging would be possible, but this would require people to control the logging, and this is the issue that we have in the first place. Unfortunately, despite the pledge by 140 countries, deforestation is coming back.

In a related subject, the Indonesian president Prabowo Subianto has stated that palm oil expansion won’t deforest because palm oil has leaves. There are many issues with this, but perhaps primarily amongst them, when forests are cut down, they are usually replaced with grass lands for grazing cattle – these are also covered in leaves. This is obviously stupid – it may well be a better thing, that the rainforest is going to be replaced with plantations, but it has been shown that palm oil plantations take up a tiny proportion of the carbon that rainforests take up.

In another article, there was a finding that macaques living in palm oil plantations have an alarming infant mortality. Unfortunately, these macaques are not unique in being threatened by palm oil, but others include orangutans, elephants, tigers, pangolins, bonobos, and Irrawaddy dolphins.

While palm oil may be a better vegetable oil than other crops, it still looks like it will lead to us loosing most of our rainforests, unless a grip on this is found.

Toyota was a climate hero in the 1990s, why is it now to exact opposite?

I have spent a great deal of time, recently, working on a variety of areas of the website that I hope to become important in the near future (including members areas). During this time, I miss writing on these subjects, so I would open tabs on news articles that had caught my eye – when I turned my attention back, there were more than 1000 tabs. Several hundred are wildlife news, which I will deal with in the near future, but the rest have been grouped. There is a long video embeded in the bottom of the page, which gives similar information but in more detail, if you would prefer (produced by the electric viking)

This grouping is stories about Toyota, and its various moves which appear to clearly show their moves to make the climate worse not better.

Continue reading “Toyota was a climate hero in the 1990s, why is it now to exact opposite?”

Extreme heat is killing many Amazonian Dolphins

As the temperature rises in the Amazon, Amazonian dolphins are struggling to survive. Several hundred have died in and around lake Tefe where the temperature has reached 39 degrees Celsius – for reference, a hot bath is anything above 37 degrees (at 44 degrees, people start to scald).

Their bodies along with many thousands of fish, are floating on the surface. The lake is particularly hot, as a drought has led to much of the water drying up, allowing the remaining water to take the temperature of the air more quickly. While disease and sewage contamination are being checked, the hugely high temperature has a huge impact on the bodies of everything living in the water, so even if the eventual death is caused by something else, the heat would likely have killed the dolphins in the near future anyway.

Brazil is not the only country which is struggling in this way, it is happening world wide. It is true that the world has just left the El nino period, which always has higher temperatures, but still, many species like the Amazon dolphins (which is already endangered) cannot face this pressure for long, without being pushed far closer to extinction.

Scientists engage in “conversation with whale named Twain

Scientists claim to have had a 20 minute conversation with a humpback whale named Twain. By playing a recorded contact call, they encouraged Twain to approach the boat and circle it, responding to the contact call in a “conversational way”. Twain repeatedly matched aspects of the recorded call, in his response.

It seems odd that this would not be a regular part of their research, but at the current time it is not, and is thought to be the first communication of this sort between humans and a humpback whale.

It is thought that this behaviour supports our current way of looking for alien life of intelligence – like the humpback whale, aliens will be inquisitive enough to come and see what the species is that is making so much noise (the project is known as WHALE SETI). The project is using sensitive equipment to record whale sounds, and then using AI to analyse it.

Some discoveries include the identification of certain repetitive pattens and variations, which suggests an intent in the communications. We have already noted high levels of intelligence in animals like whales and dolphins, quite different to intelligence in humans. Unfortunately, the whales were not the aim of the research, and while the work may well be built on, in perhaps one day understanding more of what whales say, this project was to give insight into future attempts to communicate with aliens, not a current attempt to actually communicate with whales on earth.

Website update

HAPPY NEW YEAR! I decided to stop writing over the Christmas period this year, however, we are back and there is much going on. We have spent the down time working on our members areas, and we are hoping to have people join us on these in the near future.

I have also been reading, and have a large number of articles waiting to be written (though as the members area grows, I hope to be able to write a smaller proportion of the articles in question.

Analysis has found that 1/3 of land set aside for restoration is worse than before in Australia

Large parts of Australia look like the above photo, beautiful in a rugged way, but quite useless for the survival of many of Australia species. Australia has a wide range of habitats, which means that there are many areas which need to be protected.

The problem is, according to this study, declaring an area protected appears to be having little change on what is happened.

1/3 of all land that is set aside for restoration and conservation, has got worse rather than better. Given the fact that so many species are just hanging on to existence, this could be very bad news.

In one area that was studied, the majority of the area was cleared paddock – a serious problem for the koala and grey-headed flying fox which called the area home.

In particular, the idea of this scheme is so called biodiversity offsetting – if you are to clear wildlife habitat, you protect a similar sized area elsewhere.

Continue reading “Analysis has found that 1/3 of land set aside for restoration is worse than before in Australia”

The island where the feral species is an elephant

Around the world, there are invasive species – from grey squirrels in the UK, to Macaques on Gibraltar, however, all these pale on comparison to having to live with wild elephants.

The elephants were bought to the Andaman islands in the late 19th century, to work in the timber operation, which continued until the last few decades. Thankfully, much of the forest in the islands survives – with some islands retaining almost 90% forest cover. This means that the elephants might well be able to thrive into the future.

The islands lie 850 miles from the coast of India, which means that while elephants would not have existed natively on the islands, there are many species which would be found in the same area.

Interview Island and North Andaman hosts these elephants – though they need to be watched, as a population of 100 elephants is already small, but if split between 2 islands, humans may well have to be helped to remain genetically varied enough to survive long-term.

While some have suggested that the elephants have damaged biodiversity, with some species having become less common, this ignores the impact of the timber extraction – it is far more likely that this is an impact of the many decades of pulling specific trees out of the forest.

Given the endangered status of the Indian elephant, this population is precious, but whether it can be left where it is long-term is something we do not know. There are still roughly 30,000 elephants in India, but the Andaman island elephants are going to need to be watch, long-term, to make sure that they do not damage species only found in their new home.

The EU restoration plan was postponed in March, yet passed in August – what will it do, and will the UK do something similar?

There is still large areas of wildernesses in places like Romania, but this needs to spread across the continent.

What will it do?

  • Restore at least 20% of the EU’s land and sea areas by 2030 
  • Restore all ecosystems in need of restoration by 2050 
  • Set legally binding targets for nature restoration in terrestrial, marine, freshwater, and urban ecosystems 
  • Maintain and increase urban green space and urban tree canopy cover 
  • Restore at least 25,000 km of rivers into free-flowing rivers by 2030 
  • Plant at least three billion additional trees by 2030 

This plan was dropped in March as a result of Hungary blocking it, as well as Austria and a variety of other groups. It is unfortunate, that often in order to meet an agreement, the environmental rules are often watered down so much as to become meaningless. It was cleared, after Austria changed its mind (it should be noted that the Hungarian MEPs were in favour and it is only the Hungarian government that got in the way – as they often are; unfortunately the leader of Hungary Victor Orban is not helpful, and is often the block for the EU. Whether this will change in the near future is anyones guess.

Still this will have to be implemented across the continent to be useful. Having said this, should it be successful it is likely to have a big impact.

Reversing extinction: Marwell zoo and the scimitar-horned oryx

Declared extinct in the wild back in 2000, this species is now not only re-established in the wild, but has a big enough population to now only be listed as endangered (down from critically endangered).

Apart from supplying individuals for the reintroduction, Marwell zoo also helped with strategy.

The video below is just 2 minutes long. While it talks about Marwells other work as well, it shows a number of these animals living wild back in Africa.

This has got to become the reason for zoos. What ever else they do, there are many species at risk of extinction in the wild, these need to have enough captive individuals to re-establish wild populations, should the current conservation fail.

Of course, zoos have many other roles, from education, to fostering a love of wildlife in the next generation.

One thing that they should not be, is a curio house- many zoos are far to worried about displaying albino or melanistic individuals. Now while these individuals are fascinating and can be used as ambassadors for the species, their genetic health should be looked after (all white tigers are descended from one female, and closely related individuals are regularly bred togerther to ensure this trait is passed down. Indeed, as a result of this, white tigers are often not of good health.

The majority of zoos are now like Marwell – while like many, it started as the private zoo of wealthy owners it has turned into an important place of conservation and science. Another of their successes, is the cooperative breeding that occurs as standard in current times, across Europe. Regular loaning of animals is essential, so that we can treat all of the zoo animals in Europe as one single population, thereby  making sure that all animals in the system are healthy.

There are many hundreds of zoos across Europe (some claim as many as 2000, though around 1500 is the estimated worldwide number suggesting that this is a rather large exaggeration. It is likely that around half of the worlds zoos are in Europe, and by cooperative breeding, we can make sure that healthy populations remain in captivity, so that should a population be lost from the wild, it can be returned, when the wild situation improves.

Almost all predictions about human population are expected to peak in the coming decades, and then decline after that. If this pattern is followed, it should be expected that we will need to re-establish wilderness in the future. 

Scimitar-horned oryx have been returned to the wild in Tunisia, and Chad and there are plans to return them to the wild in Niger, in the near future.

Extinction was caused by a variety of features, but the primary one was over-hunting. This has virtually been eliminated, after a ban on hunting of this species was put into effect in 2013. Should this species be allowed to fully recover. In 1985, there was a population of at least 500 of this species living in the wild, so it took only 15 years for it to disappear, as such what is clearly essential is a regular assessment on how this species is faring, allowing earlier interventions.

Saving the natural world, may require this kind of success to be a regular feature.

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