It's always possible that a distribution fault could occur, but the grid as such in Tas is pretty secure at the present time. As long as something unexpected doesn't happen then it should all work just fine.We usually use gas for heating and cooking but after last summer here in Hobart we put in a 7.5 kw ac downstairs and a 5 kw ac upstairs . They will running on full bore in the next few days for sure , hope the grid can handle it .
With the festive cheers flowing it would be a great time for you to join us wayneL. Do you go out walking Champ? Apart from the exercise it is wonderful watching nature (what is left of it of course) and discussing it with others who one meets taking it all in too.
'Whole world' at risk from simultaneous droughts, famines, epidemics: scientists
Research published by US National Academy of Sciences warns climate change impacts could be worse than thought
An international scientific research project known as the Inter-Sectoral Impact Model Intercomparison Project (ISI-MIP), run by 30 teams from 12 countries, has attempted to understand the severity and scale of global impacts of climate change. The project compares model projections on water scarcity, crop yields, disease, floods among other issues to see how they could interact.
The series of papers published by the Proceedings for the National Academy of Sciences (PNAS) shows that policymakers might be underestimating the social and economic consequences of climate change due to insufficient attention on how different climate risks are interconnected.
Potsdam director Prof Hans Joachim Schellnhuber, who co-authored several papers in the PNAS special feature, said:
"There is an elephant in the room: current and future climate change impacts. But strangely, many people seem to be blind to it.
Many decision makers prefer to turn a blind eye to global warming consequences, while many scientists tend to focus on very specific aspects of climate change. So we resemble the fabled blind men, who unknowingly touch different parts of the same elephant: grasping the animal's trunk, one of the men is convinced he has a snake in his hand, whilst one other mistakes the tail for a rope.
To recognize the animal, they must talk to each other to properly identify the individual parts and to bring them together. This is exactly what this international project does."
Are they all wrong Wayne ? Or doesn't it matter any more ?
Abrupt climate changes and impacts already under way are of immediate concern, the report says. These include the disappearance of late-summer Arctic sea ice and increases in extinction rates of marine and terrestrial species.
Other scenarios, such as the destabilization of the west Antarctic ice sheet, have potentially major consequences, but the probability of these changes occurring within the next century is not well-understood, highlighting the need for more research.
In some cases, scientific understanding has progressed enough to determine whether certain high-impact climate changes are likely to happen within the next century. The report notes that a shutdown in the Atlantic Ocean circulation patterns or a rapid release of methane from high-latitude permafrost or undersea ice are now known to be unlikely this century, although these potential abrupt changes are still worrisome over longer time horizons.
Wintertime Antarctic sea ice is increasing at a small rate and with substantial natural year-to-year variability. Specifically, the months of May, June, July, September and October show trends of increasing sea ice extent that are just slightly above the mean year-to-year variability. In more technical terms, the trends are statistically significant at the 95% level, although small.
Even if wintertime Antarctic sea ice were to increase or decrease significantly in the future, it would not have a huge impact on the climate system. This is because during the Antarctic winter energy from the sun is at its weakest point; its ability or inability to reflect the sun’s energy back into space has little affect on regulating the planet’s temperature.
... Are they all wrong Wayne ? Or doesn't it matter any more ? ...
Very selective reading boys. It's amazing how little you can see with your hands over your eyes.
As far as the problems in the oceans goes. Absolutely agree it is serious. And if you wanted to get really concerned you would also considers the effects of acidification caused by rapidly rising levels of CO2 being absorbed.
Interested ?
CO2 is the basic nutrient for plants and other photosynthetic organisms. Plants form the base of every food chain. Thus, the greater the density of CO2 in a given environment, the greater will be the production of food for plants and of the animals that feed on them.
In recent times it has become fashionable to relate CO2 to global warming, but water in its liquid or gaseous phase absorbs, stores and emits heat 4 times (400%) more efficiently than CO2. If, therefore, by this property water is not considered a pollutant, CO2 then cannot be considered a pollutant either.
Carbon Dioxide cannot intoxicate because it is a non-poisonous non-toxic substance.
Other scenarios, such as the destabilization of the west Antarctic ice sheet, have potentially major consequences, but the probability of these changes occurring within the next century is not well-understood, highlighting the need for more research.
Ocean Acidifiction.
Trainspotter please check any one of a score of web sites on this problem. Start with National Geographic and keep going.
The reference you offered on the life giving properties of CO2 is accurate as far as it goes. It's just completely irrelevant to the issue of excess CO2 acidifying the ocean and causing serious grief.
It also completely ignores the direct effects of CO2 in trapping heat and causing the green house effect (which in moderation keeps us warm)
As far as the scenarios discussed in the papers I referenced. Of course you can dismiss the possibility that the Antarctic ice cap will melt. But in fact that is at the further range of possibilities. There are plenty of other scenarios that are far more likely to happen if we continue on our present path.
Trainspotter you point out that temperatures have risen by .8c C since 1880. If you looked more closely you would have noticed that the biggest chunk of this rise (.6 c) happened in the last 40 years.
If somehow, a magic wand perhaps, we stopped all CO2 emissions immediately we would still face an increase in global temperatures of a further .7C
That is the increase already assured with the current CO2 levels. It just takes a few years for the Greenhouse heating effects to take full effect. A world that is 1.5C warmer is radically different to what the current ecosystems have adapted to. That is why scientists see some grim consequences for agriculture in the near future.
On the pH scale, which runs from 0 to 14, solutions with low numbers are considered acidic and those with higher numbers are basic. Seven is neutral. Over the past 300 million years, ocean pH has been slightly basic, averaging about 8.2. Today, it is around 8.1, a drop of 0.1 pH units, representing a 25-percent increase in acidity over the past two centuries.
Trenberth and Fasullo, from the US National Center for Atmospheric Research in Boulder Colorado, suggest that long term oscillations in the Pacific Ocean, known as Pacific Decadal Oscillations (or PDOs) drive alternate 20-plus year cycles of upper ocean warming and cooling which also involve heat being exchanged with the atmosphere. The implication of this is that when the Pacific is in a negative phase the upper ocean loses heat and so cools the atmosphere, and that when it is in a positive phase the upper ocean warms and so heats the atmosphere.
The evidence is inexorably mounting that the climate alarmists have been taking us all for a ride. It is only be a matter of time before their agenda is exposed as one of the biggest con tricks of all time. Thus they are already scrambling to breathe new life into the CO2 emissions scare. It will become obvious (by the passage of years if nothing else) that increasing carbon dioxide in the atmosphere does not, after all, cause any significant climate change, thus it will be necessary to blame CO2 (and hence man) for some other catastrophic event. So, prepare yourself for the coming “ocean acidification” scam.
Note also the claim that pH has changed by 0.1 units over the last 200 years: it was not possible a hundred years ago, never mind 200 years ago, to measure pH to the accuracy necessary to support that assertion.
Wayne you can stand by your posts till the comes home. It doesn' t make them any more honest.
This thread is based on a lie. Your posts just support that misrepresentation.
But you are right. No mod is ever going to haul you up for nastiness or mendacious lying are they ?
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