Posts

Posted on

Looking at the capability of the world being powered from solar or wind

The sun sends 470 exajoules of energy to the earth every 88 minutes. This is how much energy the earth uses each year. If we captured just 1% of the sun’s energy this would still give a 6 times more electricity than we need. 

In a similar vein, if wind turbines collected just 20% of the wind energy on earth this would be 8 times what the entire world uses each year.

In terms of area, to generate all the power that the earth needs (using current efficiency) we would need roughly 1 million square km or about 11% of the Sahara desert. Obviously, this is an oversimplification, but it shows that the world is more than capable of running on clean energy.

The energy is there to be used, we just need to undertake it at speed. Vested interests in fossil fuel companies have fought aggressively against this move for decades. Their time must be over, the world can and must clean up its act.

Posted on

Bwindi impenetrable forest threatened by road plans

Ugandan authorities are considering two roads that will pass through Bwindi. These roads are likely to have two devastating impacts.

Currently this forest consists of unbroken forest – but will it?

Firstly, these roads are likely to splinter the park from the connected park across the border in the DCR. As with the proposed Serengeti road, neither side of the road is big enough for large ecosystems to survive long term, therefore you are threatening one of the biggest draws of tourists to the country – these tourists if well managed bring the means to pull millions out of poverty.

If these roads go ahead, then much damage will be done. Of greatest concern is a road that would run north to south in the far west of park, cutting the park off from its sister reserves across the border in the DRC. This could well lead the the rapid loss of the mountain gorilla population

The other problem is that roads ease the progress of poachers deep into the park. It has regularly been shown that a road is often the easiest way to remove the wildlife that lives in an area.

Posted on

Tesla has made more sales than Audi BMW and Mercedes combined in their home market

In September Tesla sold more cars in Germany than Audi A4 BMW 3 series and Mercedes c class combined.

Why is this important? Well firstly the Tesla cars are more expensive. As a result they naturally compete against similarly priced cars with a combustion engine. This is why this news is so exciting – it is clearly taking an enormous part of this well established market.

What is particularly concerning, is that these are the people which car companies make their most profit from. Those people with less money, will tend to either buy used cars – no extra money for the established players (though with supercharging and various other things like data, Tesla can profit), or buy small runabout cars – these tend her very small profit margins, and anyway even if you managed to make 20% profit when you’re only talking about to the car that costs £5,000, you still have to sell an awful lot of them to make substantial rewards.

Indeed the next few years are perhaps their last chance to fight back. This is because with the Tesla gigafactory in Berlin, the number of cheaper Tesla cars will explode in the next few years. 5 to 10 years after this many of those will join the used car market at prices that could quickly reduce cheaper cars demand as well.

Where are we (my family and I)? We have been liking the idea of going electric for some time. Unfortunately someone wrote our car a few years ago – too soon for us to go electric. However (as I wrote about a few weeks ago), we have just jumped in having found an old tesla s for far less than normal in the UK. Indeed with the current price of petrol, we think that it will only be about 7 years before we save the purchase price in reduced cost of travel

Continue reading “Tesla has made more sales than Audi BMW and Mercedes combined in their home market”
Posted on

Deepest apologies for quiet from me: website attacks and Covid combined

Hello!

How wonderful to be able to write to you once again.

There have been a few things that have got in the way of writing over the last few weeks.

Firstly, the website has been attacked! As regular readers would be aware, this is not the first time. Indeed, these previous attacks have meant that the website was never penetrated.

Continue reading “Deepest apologies for quiet from me: website attacks and Covid combined”
Posted on

Saving the Persian leopard

Leopards once roamed through Africa and Asia and even up into parts of Europe. Now their range is diminished and many of the subspecies are either endangered or critically so.

The Persian Leopard (also referred to as the Anatolian leopard and the Cascina Leopard)  Iranian Plateau and surrounding areas encompassing Turkey, the Caucasus (Armenia Azerbaijan and other parts of southern Russia), Iran, Israel, Turkmenistan, Afghanistan and possibly Pakistan.

These ancient Iraqi forests are under threat, and with it the last stronghold of the Persian Leopard

Today it is thought that the population only consists of 1000 adults, though their population is highly fragmented. One of its strongholds is the Iraqi Kurdistan forests, unfortunately as much as half of these forests has been lost to illegal deforestation.

Unfortunately if the Persian Leopard cannot hang on here there is little hope elsewhere. Numbers have roughly halved (as habitat has similarly halved).

Posted on

Tigers are still moving between reserves, we must make it easier

Tigers once numbered 100,000 in India. My great great grandfather spent time in India, and I grew up hearing my great grandmother talking about the time that she went with her father on her pet elephant (as you do) to find a tiger that had been maimed during a failed hunt. This was essential, as a maimed tiger (or indeed lion leopard or jaguar) is of great danger to those living nearby. A maimed tiger cannot hunt as it normally would, and humans are far easier prey.

We have never learnt to live alongside tigers. As a result, as the human population has grown, the tiger population has been squashed into less and less land. If a healthy population can survive for the next century the human population may fall again and allow the tiger to thrive once more

These days the situation is very different. Currently there is a little over 3000 tigers living in the wilds of India, a number that has doubled in a surprisingly short period of time.

Continue reading “Tigers are still moving between reserves, we must make it easier”
Posted on

When was human caused climate change first noticed?

There are still a large number of people with vested interests, who are arguing that climate change science is not settled and we need to wait a bit more.

How long should we wait?

Guy Callendar released a paper in 1938 – considered revolutionary at the time, which linked fossil fuel burning to the warming of the earths atmosphere. Indeed in 1896 Svante Arrhenius a Swedish scientist first predicted that increasing carbon emissions could significantly increase surface temperatures.

In other words it is now 126 years since a scientist predicted that global warming would be likely if we continued to release carbon emissions, and a paper was released 84 years ago confirming that Scvante Arrhenius prediction was correct.

So why are we still arguing about it? Does the free market truly allow profit to be prioritised over a scientific fact that was proposed more than a century ago, and confirmed nearly a century ago? Had the world dealt with carbon emissions back then we would be looking at a very different situation.

Posted on

Leprosy identified in wild Chimpanzees for the first time

Leprosy has been identified by an international team of scientists in two countries in west africa – Ivory coast and Guinea-Bissau.

Chimpanzees showing the effect of leprosy

Leprosy has never been documented in wild Chimpanzees and the strain in each country was different (suggesting that the two causes are different.

Seemingly, one of the hardest things about studying leprosy is that it will not grow in lab conditions. It must either be harvested from animals or on occasion the feet of mice. As a result most studies are done on people with the disease. The Ivory coast strain has a history in Ethiopia and medieval Europe so there is some research still to be done. It has not yet been identified if it was transmitted from local villages or if it was brought to this part of Africa by tourists.

Posted on

We have bought a used electric car: does it make financial sense? Why should you consider doing the same.

So we have recently bought an electric car!

This is what a tesla looks like

For any regular readers, you would have seen my article from a few days ago. When people are writing articles comparing the emissions from generating electricity to the tailpipe emissions of the combustion engine – any one with a brain is asking why? Given you are not comparing like for like. We estimate that our carbon emissions reductions from replacing our car may reach 10 tonnes a year. Each fill up of our petrol car meant about 40kg of petrol, which took 110kg of emissions to dig it out of the ground and transport it (often around the world).

So from an environmental position, yes it certainly makes sense.

But what about from a financial position?

Continue reading “We have bought a used electric car: does it make financial sense? Why should you consider doing the same.”
See Animals Wild