African elephant populations have stabilized in their Southern African homes

African elephant populations have risen and fallen incredibly fast over the last few centuries. It is estimated that as much as 20 million Savanah elephants roamed Africa in the year 1800, but in 1979 just 600,000 remained, and in 2016 just 415,000 live in Africa. At that point, over 100,000 had been poached in the previous decade.

Unfortunately, it is not merely a case of making more parks. Elephants are incredibly intelligent, but so called fortress reserves, are not good enough. Indeed, less well protected reserves, that are linked together by migration corridors, are far better for the elephant population, than the aforementioned fortress reserves.

These corridors have multiple benefits, from allowing elephants to leave overpopulated areas, to being able to move to places where food and water are available. It also means that the elephants can leave areas of heavy poaching, for instance the Virunga national park, where elephants virtually disappeared in the 1990s, but have started to return from Queen Elizabeth national park in Uganda, across the border.

Where animals cannot move, one often has a boom and bust kind of population dynamic. Now, it should be noted, that this is not always easy, as migration corridors are rarely completely empty of humans, so there is more conflict in these areas, never-the-less, it is clear that these corridors are essential, if these elephant populations are to survive into the long-term. Of course, it also leads to an interesting situation, where virtually all of the huge ecosystems in Africa are along borders, as this allows more than one country to share the cost.

Of perhaps greater worry, this population of 415,000 is both the African savannah and African forest elephant. Yet these two are completely separate species, African forest elephants are nicknamed the gardeners of the forest, and it is questionable whether it can survive as effectively in the long-term without their recovery. The African forest elephant had a population of 26 million in 1800, it is unclear how many are left, but what is clear, is that their population has collapsed in the last few decades.

Male dominance is perhaps less the default than thought amongst primates, a new study has found

Even before the study was started, it was known that some species are not male dominated. Above is a family of Bonobos, and these great apes live in a female dominated society.

Given our assumption that on male dominance, it is perhaps surprising, that only 58% of primate species have dominant males. Perhaps not surprising, as a result, every major primate group had at least one species which was female (or co-dominant) structures.

Indeed, with the gibbons (or lesser apes on this website, to check them out, click here to visit the home page, and then expand the species database, and click on lesser apes) all 5 species examined (there are a total of 20) have been classed as non-male dominant.

Amongst primates, this likelihood is (according to Lewis, the head of the study) relatively easily predicted, as tends to occur in the species, where there is little difference between the size of male and female members.

An example here, is clear: while a male gorilla can weigh twice that of a female, siamang gibbons only have males a couple of kg heavier than females – not surprisingly, while male gorillas are dominant, this is not the case with siamang gibbons.

It should be noted, therefore, that while 4 out the 5 species of great apes are male dominated (we assume this in humans as well, though, in the modern day, it would be hard to argue that we are not more of a co dominant species. Given that likely all the lesser apes (the gibbons) are more or less co-dominant, it follows, that even just looking at the apes, more are female dominant or co-dominant.

Continue reading “Male dominance is perhaps less the default than thought amongst primates, a new study has found”

Could flooding wetlands, be the next big carbon capture method?

The Nywaigi people of Australia have found that by doing this, this behaviour can sequester carbon, boost biodiversity and create jobs.

It is thought that peatlands, store twice as much carbon as rainforests, so their protection and recovery is essential if we are to maintain the wonderful climate that has allowed the human race to flourish.

In this instance (not the place that the video comes from) just 1 decade ago, the area was bad. Much of it was freshwater pasture, with a load of invasive weeds that were choking both the land and the waterways. This was caused by a ‘bund’, an earth wall build 50 years ago, to block off incoming seawater, in order to transform the area into freshwater ponded pasture (to be used for cattle pasture). You can find a video on this project to restore this area, and the bottom of this article.

Continue reading “Could flooding wetlands, be the next big carbon capture method?”

Oil, Gas and coal roundup ( more in future)

While these fuels power much of the creation of electricity around the world, as well as most transport and heating, they all need to either be left in the ground or 100% of their emissions. Below is a roundup of a group of articles of importance on these subjects.

Uk’s £22 billion carbon capture pledge follows surge in lobbying by fossil fuel industry, records show

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So-called experts are claiming that the first ultra-compact engine which has just been unveiled, will be the end of EVsTransport roundup: cleaner cars and planes

Who are these so called experts? What is there expertise in, and do other experts agree? Their expertise does not appear to have much backing it.

This engine weighs just under 11kg, and they believe that, as it delivers better efficiency and emission control, all within a sleek design. In the literature, so much is made of the efficiency of this engine, but that misses the point. They suggest that this efficiency closes the gap between combustion engines and electric ones.

This misses the point: electric cars are zero carbon at use. Therefore, the cleaner the grid gets, the lower the carbon will be. As such, it is all very well to compare electric cars now, to an experimental engine that will be in cars in a generation or two. However, in 2 generations, it is thought that most countries will have further greened their grid, leaving the electric car still ahead.

We drive an electric car, and as we pay our electricity company for 100% clean electricity, our carbon emissions are essentially zero (particularly, as we bought the car second hand). One could, quite rightly, argue that not all the electricity that we use comes from zero carbon electricity – instead, we use whatever electricity is being created at the time. But that is the point- our supplier buys enough zero carbon electricity to cover all our use, therefore, if they were supplying everyone in the country a 100% zero carbon electricity, they would have to buy enough green electricity for everyone. That could only be done by all the electricity in the country being green.

So, in short – suggesting an uber efficient small ICE engine used 10-20 years in the future is more efficient than an electric car driven on the grid now, is not a fair comparison. It is like comparing the price of apples now, to the price of futures in oranges next year. Do not buy into it. If every person in the UK drove an electric car, carbon emissions would be far lower, than if everyone drove the most efficient ICE car that has, or ever will be made (this seems pretty obvious, do not get hoodwinked).

Continue reading “So-called experts are claiming that the first ultra-compact engine which has just been unveiled, will be the end of EVsTransport roundup: cleaner cars and planes”

Could Bison allow the land to reduce air pollution? – Yes

A small herd of 170 bison, released into a 20 square miles area of Tarcu mountains in Romania, are estimated to allow the land to capture 59,000 tones of carbon each year.

Big animals like this, stimulate the soil and plant growth, allowing the soil and plant growth to take up far more carbon than without them. Although Romania is one of the wildest countries in Europe, the European Bison was lost around 200 years ago. Between 2014 and 2021, 100 bison were reintroduced into the area, and that population has naturally grown such that there are now 170.

Scientists estimate that the lands carbon storing potential is as much as 10 times greater with the bison (they suggest that it is between 5 and 15 times more carbon.

Continue reading “Could Bison allow the land to reduce air pollution? – Yes”

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”

Australias environment could be fixed for 0.3% of GDP

Wentworth Group of concerned Scientists estimate that for just $7.3 billion a year for 30 years, most extinctions could be avoided as well as repairing soil and restoring rivers. That sounds like quite a lot? Well, invasive species cost the Australian government $24.3 billion a year now.

Recovery of some of the endangered species, could well save more than they cost to save, in reducing this invasive species bill. This would also improve agricultural output, as a result of improved soil health.

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It is becoming increasingly clear: humans are responsible for the loss of mega fauna that we can see in the past

The skeleton above is the closest we can get to a real mammoth, as a result of their extinction. However, it is not the only missing large species – indeed, the elephant family alone, is thought to have around 30 extinct members. Aside from these, there are 2 known extinct species of the woolly rhino, cave lions and sabre-toothed tigers, and various species of bear, among many others.

If you go back 50,000 years, there were 57 species of megaherbivores (herbivores weighing over a ton), yet just 11 of these survive today – these include the elephant species, the rhino species the hippo and the giraffe.

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The Ross ice shelf, in Antarctica, has been found to move

The Ross ice shelf is vast, covering 182,000 square miles, it is only slightly smaller than France, and yet a study has shown, that the whole ice shelf can move 40 cm in just 10 minutes. These were generally caused by slips in the Whillans Ice Sheet, which is one of just a few ice flows into and through the area.

The whole shelf was found to move 6-8cm once or twice a day, triggered by these flows moving. This could be the cause of both icequakes, and fractures running through the ice (fractures are important, as they make it more likely that a section of the ice will break off the edge of Antarctica and head into the ocean. While this ice can, on occasion survive a long time – A23a broke of Antarctica in 1986 and has been floating free for much of the time since (except for a decade or so when it grounded); it was estimated to be 400m thick and weigh in at nearly 1 trillion tonnes.

This is a problem for a simple reason. Unlike the north pole, there is land under the ice in Antarctica. This means that while in the north pole, the ice sheet is already in the sea, so its melting cannot increase sea level, Antarctic ice all does increase sea levels.

The Ross ice shelf is known to have collapsed 120,000 years ago during the last interglacial period, and contains enough ice to raise sea levels by 11.5m (this would also cause another 2m of sea level rise because of the glaciers which would no longer be held back).

A Dutch startup, is trialling mitigating this in the Arctic, by pumping sea water onto the ice. This then freezes, thickening the ice. It is possible that this might work in the short term, however, what is clear, is that the only long-term solution, is to stop burning fossil fuels, so as to halt the heating of the earths climate.

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