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Showing posts with the label greenhouse

Climate Change - Buildings Down and the Surf

Australia has always been a harsh place to live. Despite the luxury living on the coast with all the latest modern services, inland there is a desert. Many people who are born in the harsh center remain there all their lives. A fewer number choose to live there moving from coastal cities. Let's face it many prefer the heat over the cold and they have personal reasons for choosing to do this. We do yet know what lies ahead for us in this vast continent. Climate change is happening at this very moment most definitely. El Niño and La Niña are the major factors influencing the weather on the east coast. Scientists forecast more extremes from these usually opposite climate impacting factors. The intermediate stage between these cycles has lasted for several years now. Weather is very unpredictable ranging from drought inland to too much rain on the coast. It seems we experience one or the other extreme with changeable in between. The level of the ocean is rising. Co...

Does Tony Abbot Hold the Climate Change Faith?

Now don't get me wrong here! Tony Abbot has shown himself to be a good prime Minister. He has kept his known temper under wraps. Whether this will last we don't know yet. Keeping control of information about new boat arrivals will probably not work for much longer. The press have a habit of "getting ahead" of events. Reporters will find out somehow and release the knowledge to everyone. The greatest problem lies in the area of climate change. Everyone has the latest news and info at hand today. The north and south poles are decreasing in size and that is enough in itself to accept that climate change is caused by human activity. Furthermore, animal species are moving into new regions as oceans warm up. Though Tony Abbot admits somewhat reluctantly that climate change is due to industrialization, one cannot be sure if he genuinely believes this. He has surrounded himself with climate change skeptics. Many would not accept that a war was going on un...

Study on Livestock Pollution Not Sound

Much has been said about cattle that increase carbon and methane levels in the atmosphere. Test were done on cattle in the European Union. Options were considered on how the emissions could be reduced. It was found that dairy and beef cattle contributed 60 per cent of pollution for the whole livestock industry. Because little can be done about body waste emissions, efficiency factors were at the center of the study. Poor land use was the second highest factor in global greenhouse gas emissions after direct production. Pollution for wasted food followed inefficient use of land. As usual the investigators did their calculations on how much pollution could be lessened if their advice was adopted by the livestock industry. It was estimated that the lowest impact would be a reduction of 12 per cent. Optimists in the group said 60 per cent. Somehow consumption of meat was to be reduced. Just how this was to be done was not made clear. With people in developing countrie...

A Large Rise in Sea Level Is Forecast

Though some scientists still hold onto the "myth" that coastal water will rise only a few centimeters, In a thousand years land area will be much smaller in comparison with the ocean. Some estimates put sea rise as high as 40 meters. This will devastate low-lying land. Countries as we know them today will be unrecognisable. Research is in train to find out sea height 3 million years ago by studying coral reefs, sand dunes and fossils. This will enable more accurate forecasts to be made. The extent of ice sheets that will be left with global warning and higher greenhouse gases will be ascertained. A collection of sediment in the Lamont-Doherty Core Repository, the world's largest, is being used in the study. The frequency of ice ages has already been identified more accurately. They occurred every 41,000 years. It had been believed that the time frame was every 100,000 years. Furthermore, rising mountain ranges cool the Earth's temperature. It is now obvious ...

Beware the Ozone

Ten years ago the ozone layer was a major topic. "The ozone is decreasing," headlines proclaimed. Then, it was just as quickly forgotten. It may not be growing so much but the ozone layer is still causing problems. The weather has been altered. Wet and dry extremes are the result. Desalination programs have been put on the backburner for now. They will be needed soon as the cycle swings back to dry. The ozone hole shifts high-altitude wind circulation southward. Most notable for Australia has been the movement of the Southern Hemisphere jet stream to the south. This has severe effects. For example, in the north Britain has got very cold winters in recent years due to blocking of the Northern stream. Estimates are that Australia's weather has changed by a magnitude of 35 per cent. More rain has been brought here. With the impact from greenhouse gases this water evaporates very quickly, so the overall impact is dryness. With the combination of ozone, greenhouse...