Skip to main content

Posts

Showing posts with the label environment

Genetic Modification in for Health Out for Food

Genetic modification is favored in health but not for food. Convincing people to eat genetically modified food still has a long way to go to gain majority acceptance. Yet, just about everyone is in favor of using gene technology to treat health problems. This is a strange anomaly. Gene manipulation of any kind will change the world we live in. Once a change has been made and it spreads through the environment it is there forever. Drug companies admit they have lost the war in Europe. There is no way that GM food will ever be accepted there. It is largely an emotional decision, not scientifically based. Possibly, in the near future, Europe will ban DNA experimentation in health as well. This will be counter-productive. If money is invested in nations that welcome gene science then the environment will change anyway because we all live in the same world. There is a major problem looming, however, on the real future of genetically modified crops. To be profitable far...

Not Much Sleep with First-Night-Effect

SAnthropology: we have evolved to be on guard on the first night when sleeping in a new place. Man is still a hunter. We may live in cities and believe we are advanced but our genes have evolved to survive in the wild outdoors beneath the starlit night sky. If we move into a new environment getting a good night's sleep on the first night is a problem. Our brain is "on-guard" against unknown dangers. This phenomenon is in all animals. One hemisphere of the brain will sleep while the other remains on sentry duty. This "first-night-effect" is permanent. There is no cure because it isn't an illness. After the first night the brain adapts, records the new environment and deems it to be safe. Tests show that the left hemisphere sleeps lighter in a new situation. Slow-wave activity is weaker than the right hemisphere. Furthermore, the default-mode network which involves mind wandering is more active. This indicates that the brain is checking th...

Ships' Ballast Water Spreads Marine Creatures

As international trade continues so does "equalization" of the planet. Many marine species are now found in all waters of the world. This is because transport ships literally hoover up animals in ballast water, which is released at any time, any place, when it is no longer needed. All ballast water is released into a port when cargo is taken onboard. Marine survivors of this rough treatment give the local environment a go. Some are successful and multiply to epidemic proportions. Zebra mussels and Pacific seastars in particular are a major problem. An Australian study gathered data such as ports where ballast was likely to be taken on and where it would probably be released. Marine species spread this way were identified and it was predicted how long they would survive. This data was fed into a computer. It was noticed that shipping volume was increasing mainly in the transport of primary products. Most of this Australian export was delivered to Asia and...

The Environment Affects Us and Our Health

The type of environment affects the mood of people. This is not surprising when one considers that Man a creature of his habitat. What the senses perceive shapes the human animal.  As humans responds to what is "Out there", so evolution ensues. A "noisy" environment, bright colors and loud sounds, stimulates us. Furthermore, it puts us on edge. The body is prepared to take action of some kind. Communication of three bodily systems (nervous, immune and endocrine) work against our wishes to bring this about. If we want to get away from high stimulation we need to move ourselves to a soothing environment. People know this full well. A quiet snooze in front of the TV after dinner at home is always relaxing. Adrenaline, noradrenaline and cortisol levels drop. In an emergency stress gives us two option: flight or fight. If we cannot move away from hostile surroundings, we must put on a brave face and tough it out. Bluff is also part of flight.  H...

Aboriginal Subsistence Fires Benefit the Ecosystem

Bush fires are natural in Australia. Far from being a curse, they benefit the environment and wildlife generally. Of course this has to be qualified by houses being destroyed and injuries to people. Aboriginals have been intentionally lighting fires for thousands of years. Actually, it has a positive impact on kangaroo evolution. A fire promotes an increase in kangaroo numbers. To get the greatest benefit the best time for a burn-off  can be identified. Human subsistence is crucial in managing this. It compliments the ecosystem. Modern farming is detrimental to the way wildlife functions. The system is thrown off-balance. Stopping the burn-off and mono cropping changes everything. Australia needs more burning, not less. Authorities are following the wrong policy. Leaving native trees to grow tall can only lead to eventual disaster as a massive fire results as time passes. Managed fires provide more food for animals as new shoots appear. Animals can also h...

No-Car Future Is the Only Sustainable Option

The National Sustainability Council presented its long awaited report called the Sustainable Australia 2013: Conversations with the Future . This is the first of a series of biennial papers to advise the government about the state of the economy vis-a-vis the environment. Full of optimism, the newly founded council said the future looked bright if we changed to building sustainable communities. However, the type of community needed is far more radical than envisaged by the council. Despite Australia having many of the most livable cities in the world we need to start planning immediately for the kind of balanced society of the future. Oil will not be around forever and coal is too polluting to be used at such high rates. This means individuals driving around in five seater cars will not be possible. Electricity use is skyrocketing with Internet cloud servers and hungry mobiles gobbling up tonnes of coal and oil in power stations. Future cities will have to be designed with hou...

The Impact of Peak Oil

It seems that we have pushed the peak oil period further forward by obtaining coal seam gas from just about everywhere we look. Fracking does damage the environment and the current freedom for the gas companies could be curtailed. When peak oil is reached the impact on Australia's rural areas will be significant. Supplies of oil will fall and prices for the scarce commodity will rise. Farmers use advanced machinery to sow, plant and harvest food crops. If governments set priorities then agriculture will have to be given precedence over private use. Transport will be next in line. There are two aspects of transport. Movement of food is very important, but as people will not be able to freely use their cars they will opt for public transport to get to their places of employment. People will have to live with limited mobility as they did in the days of the horse and buggy. A day out will be a luxury. Economies will go into recession as trade slows down. Perhaps people will ...

Lead Remains High in the Blood of Children

Despite changes in the supply of motor fuel, i.e., the move toward unleaded petrol, high levels of lead in the blood of children is still an issue. In the northern hemisphere there are seasonal fluctuations in levels of lead. Though the general amount of lead present in the environment has fallen, it remains significantly high in the blood of children. Much of the lead released decades ago is still there. The polluted fine particles are swept up into the air in the warmer months of July, August and September. This is the time when children are outside playing their sports. Money would be better spent on "fixing" the suspended lead rather than reducing content in products we use. Finding a way to "lock-in" the lead particles would end the damage to future generations of people. Once lead reaches a high level in the blood it is extremely difficult to reduce. Damage to the brain and nervous system is permanent. http://www.adventure--australia.blogspot.com/ htt...

The Demise of Species Will Have to be Prioritized

Not much can be done about saving endangered species when the great majority of people "don't give a damn". Like global warming many just do not want to hear the truth. Money is not forthcoming for conservation. Stopping animals from going extinct is only being done on a piecemeal basis. We have to choose what to save. This really means that the blame for the loss of some animals lies solely with Mankind. Just who is to decide the fate of creatures is not yet known. It will have to be bodies that receive funding for such purposes. They are probably doing the selection process as we speak. If what is to be saved and what is to be lost was publicly known there would probably be an outcry - everyone has their favorites. More funding is the answer of course. Whether times be good or bad giving money for conservation has never been popular. Other things seem more important. It is really inevitable that prioritizing what goes extinct will occur. The global warming ...

Plastic Resin Pellets Pollute Western Australian Beaches

Western Australian beaches are in the throws of an ecological disaster. Tiny pellets of plastic resin are in the environment which absorb industrial chemicals particularly pesticides. The pellets are a bi-product of plastic drink bottle manufacturing. There is real danger that Bisphenol A will create estrogen leading to infertility. Bisphenol A was first found in plastic in the 1950s. Such plastic is now found everywhere. It is not known how or even if marine animals consume the plastic. Other chemicals, many estrogenic, are put into bottle plastic for flexibility, color and other properties. The chemicals are not fully absorbed in the plastic, so they migrate to the surface and escape. It was established several years ago that PCBs, DDT and HCH chemicals. all hormone disruptors. were in plastic resin pellets. Australia is playing a "waiting game", watching to see what other countries do in regard to these pellets. Many people are not worrying because the pellets bl...

Potential Future Disaster From Nanotechnology

There is danger from future widespread use of nanotechnology. It is seen as the new savior to save the world from food shortages and so on. But like bio-fuel production it could do more harm than good. CSIRO is calling for more study of nanotechnology. This is despite the fact that no country has yet examined safety issues involved with it. Nanotechnology creates "micro-fine" products that have no safe disposal system. If they get into the environment there is not telling what damage they could do. Risks are seemingly endless: use by terrorists; environmental damage; self-reproduction (goo everywhere); even the future of Mankind on this planet could be under threat. Once a material has been modified or a new nano-product created it becomes a permanent structure. It must be chemically altered to make it safe. A nano-substance is not inert. It will act on the environment if it can. At the moment there are no restrictions. Developers can do what they wish. Let's h...

Australia Makes Beer for Space

Australians love their beer - really love it. So when going into space it is wise to get "space certified" beer while on board. Saber Astronautics Australia is working with 4 Pines Brewing Company to get their beer registered as satisfactory for space. The beer will be tested in low gravity by weightless parabolas. Taste and drinkability are paramount. In a low gravity environment human taste is reduced in sensitivity. The way carbonated liquid responds is also an issue. Oddly the Australian brew being tested is not the usual lager. It is stout. This has more flavor. Gas will float around in the liquid in the stomach being released in what is called a wet burp. The beer will be expensive because of the limited market. Space beer has been made by the Japanese using barley seeds grown in the International Space Station, but that was for earthly consumption. http://www.adventure--australia.blogspot.com/ http://www.tysaustralia.blogspot.com/ http://www.feeds.feedburner.com/Advent...