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Friday, 26 June 2015

Check These Out

James May's Lego house
These are just a couple of articles from a website called science alert, if you have never been on it you should defiantly check it out,

http://www.sciencealert.com/lego-to-kill-off-plastic-bricks-in-a-move-to-sustainable-materials

It's always good to see major businesses taking some responsibility for their environmental foot print. Did you know the Lego produces about 36 billion bricks a year, that's 1140 bricks every second and means there are 62 bricks per person alive today.


This is something that needs to happen more. I will be posting about electricity in the future but I thought it would be a shame to miss this as it's the beginning of  a change for sustainable power.

Thanks for reading

Thursday, 25 June 2015

Transport

Let’s talk about transport. How do you get around most the time? Drive? Walk? Or perhaps you fly. Transport is vital in today’s society it has allowed the whole world to become available for a
price of course. In a few days ago l flew back from Sydney to London, it is a huge journey and takes a whole 24hr with at least one stop over. These are the kinds of journeys which would have been a major life decision 100 years ago and 100 years before that they would have seemed completely insane have become common in today’s world. In fact at the time you are reading this there are approximately 5000 commercial planes in the air in USA air space alone.

It’s not just planes that are connecting the world, cars, trucks and motorbikes are like the red blood cells of the planet, just as blood carries oxygen round the body these vehicles carry resources such as food raw materials and people round every country.  Australia for example has 723 vehicles per 1000 people so that’s a total of 1672290 in Australia alone, this is th in a list which sees San Marino at number 1 with 1263 vehicles per 1000 people (although they do only have a population of 31448).
only the 7

I do own a car and take it to university with me when I’m in the UK. Sometimes you just need a car to provide you with personal transport to move large items around or if you are in a hurry to get somewhere. There are point however when you can get away without using a car and use a different method to get from a to b, that’s the main point I want to get across. With ever journey you should always be thinking about your journeys and then chose the most suitable method and remember it doesn’t always have to be your own personal car.   
       
All the points I’m about to make do depend heavily on where you live, if you live in a town or city you’ll be able to put them into practise without a problem. While if you live in the middle of nowhere you’ll struggle to move away from your dependency on your personal vehicles.

The first thing you should always think about is do you really need to drive there, for instance you could walk there or perhaps cycle. On average Australians drive 15,530km a year while Americans drive 26634.64km (16,550miles), with each American drives 21.88708km (13.6miles) on their daily commutes on average. These are huge distance and result in people spending days and weeks in their cars each year and this isn’t overly healthy for them or the planet. It’s possible to cycle 20km an hour without much stress or effort on your body. If everyone was to start cycling to work a couple of times a week it would make a huge difference to both their health and the total amount of emissions which are produced each year, it would also save them money as fuel prices rise ever higher.

If you do have to drive though there are still steps you can take to make each journey more environmentally friendly. It seems simple but very few people put it into practice, pay attention next time you are driving and count how many cars you see with more than one person in. For most journeys for instance the commute to work it’s a solitary affair but this is what needs to be changed, try to get a few people together and carpool. This will make a difference to both the number of cars on the road and the emissions, even if you do have to take a slightly longer route, your journey as a group would still be environmentally friendly as there are fewer cars. It will also workout cheaper as you can split the fuel cost and if there are 4 of you in the car that saves you a large amount each year.

The second point I’d like to bring up is don’t take the easy option sometimes, walking isn’t that hard and yet still people tend to drive to places that are only a 10 minute walk away. It amazed me every time it rained when I was in school how many people would get dropped off in a car just so they didn’t have to walk. I was always sent out with a coat or an umbrella and got there just fine; you don’t even need these if you want to rock the drowned rat look. What people tend to forget I think is rain isn’t going to hurt you and your skin is waterproof so even if you do get damp your clothes will dry out and you’ll be fine.

Finally public transport isn’t being utilised as much as it should be, this point relates back to people being lazy as well. It of course depends where in the world you are but usually there are options offered such as buses or trains, unless you are somewhere like the middle of Mongolia. I’ve used public transport in the UK, Australia and parts of Europe, and from what I’ve experienced it is usually extremely good. Its things such as bad pu
blicity with delays and cancelled services and the fact that a bus doesn’t take you from door to door like a car that seem to put many people off. These services are designed to cover the areas evenly and will get you close to your destination. In some cases it is also faster in some over crowed cities which use bus lanes and underground train systems. The use of public transport will also help reduce your carbon footprint and works our cheaper for most journeys.

Thanks for reading

Check out these links

Extreme public transport
https://www.youtube.com/watch?v=jPyYGw9Jn6w

Tuesday, 23 June 2015

Extinction

I was a bit slow on the uptake on this article as it was published a few days ago but if you haven't read it yet it's well worth a look.

News
https://theconversation.com/earths-sixth-mass-extinction-has-begun-new-study-confirms-43432

Source Paper
http://advances.sciencemag.org/content/1/5/e1400253

It's alarming news with the average rate of vertebrate species lost over the last century being 114 times higher than the background rate.


Friday, 12 June 2015

Foxes

Foxes seem to be everywhere, the genus Vulpes also known as the trues foxes are made up of 12 different species. Between these 12 species they have ranges which cover, Europe, North and central Africa, Asia, Australia and the Arctic.

The Fox with the most extensive range is Vulpes vulpes or the red fox and it can be found nearly across the entire Northern Hemisphere and also as an invasive species across the majority of Australia where it was introduced in the 1830s for fox hunting. A sport which originated in England in the 16th century and has been outlawed in the UK since 2005, however this ban it is possibly coming up for review within the UK in the next few years.
the red fox and it can be found nearly across the entire Northern Hemisphere and also as an invasive species across the majority of Australia where it was introduced in the 1830s for fox hunting. A sport which originated in England in the 16

The Red fox is a very successful species and is an omnivore with its natural diet consisting of invertebrates, small mammals such as mice and rabbits and some plant matter such as berries. This isn’t the diet the majority of the Red Foxes consist on now, as they have adapted to become very successful in the urban environment. In fact in the UK for instance there are now more foxes found in built up areas. A study in 2014 showing that there are >30 fox sightings per 1000people km−2  (link 1 will give you more information on how the distribution of Red foxes has shifted towards urban areas).


Although the foxes in the Vulpes genus have very similar morphology there are difference and certain adaptations which allow them to excel in their own environments. For instance the Arctic Fox (Vulpes lagopus) are slightly smaller which gives them a smaller surface area to volume ratio than the red fox to reduce heat loss and a counter current circulatory system to prevent cold blood flowing back towards vital organs by heat transfer between blood moving from the core out and blood moving from the surface in. The coat is thicker and multi-layered, also during the malt each spring the coat colour changes from white to a browner colour to aid in camouflage. While the Fennec fox (Vulpes zerda) which are found across North Africa in the Sahara, possess a thin coat and larger ears to help radiate excess heat.
The Arctic fox and others have amazing abilities which allow them to hunt without using their vision. The majority of the species have extremely keen sense of hearing which allows them to hunt effectively in complete darkness or in the case of the Arctic fox prey which is hidden below a layer of snow. The Artic fox is able to triangulate prey items such as lemmings and voles which are surviving the winter in tunnels below the snow and then it pounces, diving through the snow and catching it.

An interesting study has been taking place in Russia for over 50 years now; it is based on an experiment which is looking into how wolves became domesticated into modern day dogs. It uses a sub species of Vulpes vulpes know as the Silver fox or marketed as a Siberian fox, yes that’s right you are now able to buy one of the descendants of the original test subjects and keep them as a pet. The study was set up by Dmitri Belyaev, and takes Silver foxes and breeds them for the selection a passive nature, while the other half of the study was breed for aggression. If you are interested follow the link below (2) to read more. I suggest you do if you’ve got the time.


The Red fox is causing havoc in Australia as they are suitable adapted to survive the in the habitat Australia provides and their population is running wild just like rabbits and the cane toad. They are predated by native animals such as dingoes but this is doing little to control the population expansion due to the decline of dingoes. They are threatening ground-nesting birds, mammals such as the greater Bilby and the bridled nail-tail wallaby and reptiles. Australia is currently attempting to control the red foxes numbers by trapping and poisoning using 1080 toxin, and work is currently being undertaken to develop an alternative toxin to 1080 which is less harmful to non-target animals. This culling may be seen as unnecessary by some of you however there are many native species suffering and some of them being pushed close to extinction by invasive species like the Red Fox and also feral cats and dogs.  


Link 1

Link 2

Thanks for reading

Check out these videos

Wednesday, 10 June 2015

Waste

I know I have already posted about recycling and reducing, this however in many people’s eyes involves simply rubbish like cans and plastic. I would also like you to stop and have a think for a while about all the food waste you’ve thrown away year so far. Now think about all the energy it has taken to get that food to your door. Think about the energy required to produce it, this all adds up to colossal amounts.

Millions of acres of land in every single country has been cleared for agriculture and billions of tonnes of grains are planted every year to feed growing populations. As well as crops land is cleared for grazing of domesticated animals such as cows and pigs.

This mass production method of food in monocultures are somewhat necessary to cope with the high demand for food across the world, even with these methods it is estimated that 805 million people suffered from undernourishment from 2012-2014. In other words 1 in 9 people are not getting suitable nutrition they need on a daily basis, 791 million of these people are found in developing nations and 161 million are children. 

We need to revaluate the types of food which are consumed and the amount of food waste which is being produced in developed countries where food is plentiful. Changes in both attitude towards food and the types of food which are regularly consumed will help limit the changes which are being made to the environment.

For instance meat production has a far higher cost of production than vegetables and grains, if you factor in the amount of grain needed to produce meat. A single hectare of land can produce 29 times more food in the form of vegetables than in the form of chicken, 73 times more than pork and 78 times more than beef. It’s also important to remember that it’s not just the production of vegetables that decreases for meat production; you must also remember what was lost from the land to start with. In Brazil for instance 80% of the deforestation taking place was accounted for by cattle ranching. That’s hundreds of thousands of acres a year, and the land cleared is only productive for a few years, as once the tree roots are lost from the soil it becomes unstable and the thin fertile top soil is lost and the land turns into a dust bowl, and so the process carries on with no end in sight.
The destruction of land isn’t the only cost, 340 million tons of carbon is released into the atmosphere each year
from cattle ranches in Brazil alone, that’s 3.4% of global emissions (That includes the deforestation). In fact over 50% of global human-caused greenhouse gases can be attributed to livestock and their by-products.

Now I’m not attempting to turn anyone into a vegetarian because of this post, as I will still be eating meat. Humans are omnivores and we require both meat and vegetables in order to grow and it is a key factor in living a healthy lifestyle. I understand it is perfectly possible for a vegetarian to gain enough nutrients without the consumption of meat, but it does require careful meal planning. I simply want people to look at the quantities of meat they are eating each day and take steps to reduce it, perhaps aim to remove meat from two or three of your main meals a week and replace the ham or chicken in your lunch time sandwich with a tasty alternative. These changes will not only have effects on the global meat production but also in your wallet.


The second point I would like to make is about the actual food you eat every day. It’s important to think about what you are eating from day to day, as in today’s world in developed countries you are constantly capable of finding any sort of food you want. Clearly though you can’t grow bananas in the UK and other products constantly available are seasonal yet they are still available off season, this means that they have to be transported in. This results in these products having thousands of food miles.  For an example an average food basket in Victoria Australia, a country which is capable of growing a huge range of different crops, has travelled a total of 70,803km to get to your dinner table. That’s the same as almost travelling twice round the earth and so food mileage is a huge contributor to the production of greenhouse gases. The products have also needed to be refrigerated till they reach the destination so as they arrive fresh, but this creates even more emissions as it requires large amounts of energy. So please attempt to source the majority of your food as locally as possible and limit the amount of each product you eat when it’s out of season.

Finally I want to leave you with a few facts about the sheer mass of edible food which is thrown away each year. Aussies throw out $8 billion worth of edible food ever year, which equates to 4,000,000 tonnes. There are ways to reduce this, if you plan your shopping for the week or the month it will mean you have a decent understanding of what you need and you are less likely to buy excess food which will expire before you have time to eat it. Also try to separate food which expires such as loaves of bread into smaller portions and then freeze the rest till you need it. Finally use the information on the back of the packaging which gives you suggested quantities to cook, and if you have left overs no matter how small keep them for a snack later to replace biscuits or as a part of your lunch.

These are all simple methods and I completely understand that but too many people are not following them with people in the age range 18-24 being the most wasteful.

Thanks for reading.

Check out this video!!!











Monday, 8 June 2015

Weddell Seal

So I’ve been thinking and I’m going to be trying to add something new to this blog, which will hopefully give you a reason to make those small changes in your life to help the planet and will also teach you a bit more about the plants and animals we share this world with.

I’m going to start these posts with an animal which some of you may not have heard of before but is being heavily affected by global climate change and the decreased amounts of ice found at the Antarctic ice caps.

The Weddell Seal, this seal is found in the Antarctic and like the Empire penguins remains there throughout the harsh winter storms in the darkness. In fact the Weddell Seal is the only mammal which remains on the Antarctic continent throughout the entire year. They have been seen in waters as far north as New Zealand and Australia but these sightings are extremely rare.

The Weddell Seal is perfectly adapted for its life in such an extreme environment as the Antarctic where surface temperatures can drop as low as -40°C and that isn’t accounting for wind chill. However the Weddell Seal doesn’t spend the majority of its time on the ice, it instead prefers the more sheltered environment of the world under the ice. Thanks to the insulation of the ice the liquid water under it remains at a fairly constant temperature of just above 0°C which makes surviving a lot easier.

They are capable of diving for well over 20 minutes and go to depths of 500+ meters. These deeper dives are usually undertaken in the day, while night dives usually bottom out at around 200 meters. Their underwater navigation is excellent which of course is necessary as they have to find their way between their breathing holes in the ice.

These holes are kept open throughout the coldest days and require constant work to stop them from icing over. To prevent this Weddell seals use their teeth to bite away at the developing ice crystals. This method is effective but also limits the seals lifespan as this constant use wears away the teeth and then the seals end up dying from starvation. The average life expectancy of the Weddell Seal is unknown with individuals living from 12 to 15 years while others live up to 40.

A seals diet is primarily made up from squid, fish and krill and some seals have even been observed blowing air bubbles into ice cracks in an attempt to flush prey out into open water where the seals manoeuvrability allows it to quickly and effectively catch the prey. They aren’t however on the top of their food chain and seals have to avoid being hunted by their natural predators which are leopard seals and killer whales which have developed their own hunting methods to make them efficient killers.


There are approximately 800,000 Weddell seals around the Antarctic
and they form up into large colonies around September and October to give birth to a single pup after a 9-10 month gestation period. It is then a race against time for the pup to gain weight to allow it to survive the extreme winter. After 6-8 weeks the pup is weaned and at that point they have gone from the starting weight of around 29kg to several times that weight. They continue to grow for the next 3 years till they reach a weight of 400-500kg. There is also a delay before they become sexual active and begin breeding, although they have reached maturity by 3 a Weddell Seal does not breed till it’s around 5 years old.

I hope this has taught you a few things that you didn’t know beforehand.

Thanks for reading