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Evidence for global warming. (Read 91689 times)
Bobby.
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Re: Evidence for global warming.
Reply #105 - Mar 29th, 2019 at 6:08pm
 
DonDeeHippy wrote on Mar 29th, 2019 at 4:40pm:
Bobby. wrote on Mar 28th, 2019 at 5:17pm:
DonDeeHippy wrote on Mar 28th, 2019 at 5:11pm:
The glacier is not recovering Bobby its just not melting as fast as it was,,, id say that is 2 very different things  Wink



Hi Don,
I don't think the climate is so simple that you can say -
ohh - more CO2 therefore we're going to roast.
The Roman and Medieval warming periods had nothing to do with CO2.

I'm hoping that Thorium will be our new power source and that
we can forget fossil fuels forever.

http://www.ozpolitic.com/forum/YaBB.pl?num=1519823686/0#0

Bobby you are mistaking me for someone else, again I've never said any thing about co2 having a impact on the climate...….Try again  Cheesy Cheesy



OK - so you now have an open mind like me?

It's good to see one person converted.
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lee
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Re: Evidence for global warming.
Reply #106 - Mar 29th, 2019 at 6:10pm
 
Captain Nemo wrote on Mar 29th, 2019 at 10:15am:
WMO Statement on the State of the Global Climate in 2018



And it is only later in the article you find that it is a mixture of "observations" and model based. You know like BoM, NOAA, NASA etc adjust their observations.

And of course Gavin Schmidt head of NASA GISS says that global temps are only accurate to +/- 0.5C. NOAA uses 1/100ths of a degree.

Then there is the precipitation. With south western WA having  "positive  precipitation anomalies with respect to a 1951–2010 climatology" while central and eastern Australia had "below-normal precipitation".

Isn't CO2 an amazing gas. Causes above average somewhere and below average elsewhere. Wink

90% of  heating going into the oceans? I know the alarmists like to use zettajoules however it takes about 2600 zettajoules to raise the top 2 kilometres by 1C.

Further in Hausfathers paper they say that they knew the ocean heat at 2Km to within +/- 95 zettajoules (+/-0.4C) in 1955 and in 2018 to within +/- 9 zettajoules (0.003C) Three one thousandth of a degree. Grin Grin Grin Grin

So really 90% of SFA. (Sweet Fanny Adams to the uninitiated.)

...

BTW - Hausfather was out in his 2018 ocean heat being the warmest. According to NOAA -

Ocean      +0.66 ± 0.16      +1.19 ± 0.29      Warmest      4ᵗʰ

Then of course there is the methane emitted by trees and forests.

And of course the new ocean cooling off Greenland.
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« Last Edit: Mar 29th, 2019 at 6:24pm by lee »  
 
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Bobby.
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Re: Evidence for global warming.
Reply #107 - Mar 30th, 2019 at 5:21pm
 
It was so cold today.
I have a beany and a scarf on inside the house.

Channel 7 news said it was the coldest March day since 2015. in Melbourne.



http://www.weatherzone.com.au/news/frosty-morning-beckons-in-the-east/529514


Frosty morning beckons in the east
Jacobus Cronje, Saturday March 30, 2019 - 13:05 EDT

Following a period of prolonged, above average heat over most of the eastern parts of Australia, a strong cold front currently moving off the eastern seaboard should bring significant cooling in its wake.

On Sunday morning, most of inland NSW west of the Great Dividing Range should see minimum temperatures well below 10 degrees, finally making it feel like autumn. In fact, it should be the coldest morning of the year over such a large portion of the country, with some locations along the slopes and tablelands probably seeing the first hint of frost.

Places like Canberra, Orange, Armidale are likely to cool to below 5 degrees, while frost and near-zero temperatures are possible for places like Cabramurra.

Cold air in the wake of a cold front can lag behind the actual airmass boundary that we understand to be and mark as the actual cold front. As is the case with the current system, and apart from the initial cool burst of air,  cold air being dragged up from the Southern Oceans will take a while to cover such a massive area of land, making Sunday the actual colder day for much of the state.

Early morning cooling will be enhanced further by skies clearing rapidly in the wake of the system, allowing for less heat to be trapped, as would be the case with partial or complete cloud cover.
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Captain Nemo
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Re: Evidence for global warming.
Reply #108 - Apr 2nd, 2019 at 3:31pm
 
Australia sweats through the hottest March on record


Australia has just experienced the hottest March on record, capping off the hottest first quarter of the year ever recorded.

The national mean temperature for March was 2.13 degrees above average, and the January to March quarter was 0.88 degrees hotter than the average
.

Bureau of Meteorology senior climatologist Blair Trewin said the new records were "quite significant".

"That's a big margin to be breaking those sorts of records by," he said.

"The December to March period is even more of a standout in that sense, given we had a record nationally in December, we had a record January, we had a record March, and February was also in the top few."

One of the standout features of March and the past four months in general was the fact it was hot everywhere, Dr Trewin said.

"[We] had above average temperatures in March over 99 per cent of the country," he said.

...
Australia has experienced its hottest first quarter on record.CREDIT:BUREAU OF METEOROLOGY

Parts of Australia recorded long stretches of hot days over the past four months, with Rabbit Flat in the NT, north-west of Alice Springs, recording 115 consecutive days of 39 degrees or higher.

"It was above 39 every day from the start of December until last week, and that's actually the longest run of such hot days that's ever been recorded anywhere in Australia," Dr Trewin said.

It was the sixth warmest March on record for NSW, with north-eastern parts of the state experiencing hotter than average days and nights.

While rainfall in NSW was close to average for March, Dr Trewin said rainfall was still tracking "significantly below average" for the year so far.

"Rainfall for the first quarter of the year was about 41 per cent below average, and that's actually almost exactly the same as the first quarter of last year, so we've now had two dry starts to the year in a row," he said.

Nationally rainfall was "quite variable", Dr Trewin said, and was in fact one of the factors influencing the long hot spell, with a weaker than usual monsoon season in northern parts of Australia.

Despite tropical cyclone Trevor and the flooding rain experienced by north Queensland, Dr Trewin said it was dryer in the NT and WA, which meant less moisture got into the interior of Australia.

While temperatures have begun to cool as April begins, the senior climatologist said the seasonal outlook was predicting a high chance of continued above-average temperatures in the April to June quarter.

"That doesn't necessarily mean record temperatures," he said.

"Certainly, the forecast for the next week or so is for consistently above average temperatures."

https://www.theage.com.au/environment/weather/australia-sweats-through-the-hotte...
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lee
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Re: Evidence for global warming.
Reply #109 - Apr 2nd, 2019 at 3:52pm
 
Captain Nemo wrote on Apr 2nd, 2019 at 3:31pm:
Australia sweats through the hottest March on record



And they still used NEW Improved ACORN2 with yeast; to get that furrher rise, rather than the RAW data (historical observations). Grin Grin Grin Grin Grin
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Bobby.
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Re: Evidence for global warming.
Reply #110 - Apr 5th, 2019 at 11:27pm
 
Drought in Melbourne.

http://www.weatherzone.com.au/news/record-dry-start-to-2019-in-melbourne/529544

Melbourne is having its driest start to a year on record, with less than one third of the city's average rain falling during the last three months.

At 9am on Friday April 5th, Melbourne had only received 42.0mm of rain since the beginning of 2019. This is the city's lowest amount of rain to this point in the year on record, with data available back to the 1850's.



Roadside grazing provides lifeline to cattle sent south to escape drought

Angus Verley, Friday April 5, 2019 - 15:28 EDT

http://www.weatherzone.com.au/news/roadside-grazing-provides-lifeline-to-cattle-...
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Re: Evidence for global warming.
Reply #111 - Apr 8th, 2019 at 4:58pm
 
...
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Re: Evidence for global warming.
Reply #112 - Apr 17th, 2019 at 5:39am
 
http://www.weatherzone.com.au/news/warm-spell-in-melbourne-and-hobart/529588


Warm spell in Melbourne and Hobart
Ben Domensino, Tuesday April 16, 2019 - 08:50 EST

Melbourne will enjoy two bouts of unseasonably warm weather this week.

Temperatures will climb across Victoria on Tuesday and Wednesday as warm air drifts across the state ahead of an approaching cold front.

After a brief burst of cooler weather on Thursday and Friday, the mercury will climb once again as northerly winds redevelop on the weekend.

Four out of the next six days are forecast to reach the mid-to-high twenties in Melbourne, which is well above the city's average maximum temperature of 20 degrees at this time of year.

If Melbourne hits its forecast tops of 29 degrees in Tuesday and 28 on Wednesday, it will be their warmest pair of days this late in the season for 26 years.

Milder weather will return to Melbourne by the start of next week, following the passage of a cold front on Sunday or Monday.

Tasmania will also be affected by this week's warmth. Hobart's forecast tops of 25 degrees on Tuesday and 26 on Wednesday would be the city's warmest pair of days this late in the season for 19 years.
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Re: Evidence for global warming.
Reply #113 - Apr 17th, 2019 at 12:11pm
 
We're all doomed.  Sad

It's just a matter of time.

...
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Bobby.
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Re: Evidence for global warming.
Reply #114 - Apr 19th, 2019 at 1:34pm
 



Climate Clash: Malcolm Roberts vs Brian Cox

Climate excerpt of the exchange between Malcolm Roberts (One Nation) and Physicist Brian Cox, Australian ABC Q&A programme on 15th August 2016.
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Re: Evidence for global warming.
Reply #115 - Apr 26th, 2019 at 9:02am
 
...
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Re: Evidence for global warming.
Reply #116 - Apr 26th, 2019 at 11:20am
 
lovely poem.

Did you know that they have now found methane is occurring naturally from swamps etc. Makes you wonder just how accurate their estimations of anthro Methane are.

And of course CO2 is emitted into the atmosphere by trees during growth. Perhaps we should cut them all down. Wink
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Re: Evidence for global warming.
Reply #117 - Apr 26th, 2019 at 12:33pm
 
Sing-a-long time!



World's oceans are becoming stormier, researchers discover
Data matches predictions that weather will get more extreme as planet warms, scientists say


...

Increases in average wave height and speed have been recorded around the globe in the past 30 years. Photograph: Doug Allan/Getty Images

The world’s oceans have become more stormy during the past three decades, according to the largest and most detailed study of its kind.


The findings add to concerns that as the world gets hotter, extreme events such as storms and floods could become more frequent and more devastating in their impact.

Slight increases in average wave height and wind speed were recorded in oceans across the globe, with the strongest effects in the Southern Ocean. The study relied on data from 31 satellites and more than 80 ocean buoys collected between 1985 and 2018, with about 4 billion observations.

Extreme winds in the Southern Ocean have increased by 1.5 metres per second, or 8%, over the past 30 years, while the highest waves have increased in height by 30 centimetres, or 5%. The strongest winds increased in the equatorial Pacific and Atlantic and the North Atlantic by about 0.6 metres per second.

Prof Ian Young, the first author of the work from the University of Melbourne, said: “Although increases of 5 and 8% might not seem like much, if sustained into the future such changes to our climate will have major impacts.”

Young said that increases in wave height could lead to more serious flooding and coastal erosion, and put offshore structures such as wind farms at risk of damage.

The researchers said the observations were in line with predictions by climate models and from historical records that suggested that as the world got hotter, weather and storms became more extreme, although the relationship was complex and not fully understood.

“The role climate change plays in wind speed and hence wave height is still not clear,” said Young.

Others said that the role of global warming in the latest observations was yet to be established. “It’s a bit difficult to extrapolate these finding to the wider picture,” said Dr Paulo Ceppi, of the Grantham Institute at Imperial College London. “During 30-year periods you can still have pretty significant natural variations in winds.”

Ceppi said that the observed changes in the Southern Ocean were likely to be driven by the hole in the ozone layer, in the Antarctic stratosphere, to a greater extent than global warming – although this could also be contributing.

The study, published in the journal Science, updates previous work from the same team published nearly a decade ago. A major challenge in compiling long-running data series, they said, is accounting for significant changes in technology and data processing over the time period. For the earliest part of the time period the coverage was not as extensive and the measurements were less accurate. The scientists needed to rule out the possibility that they were simply seeing more violent storms because there are now more satellites to spot them, for instance.

The findings also suggest that conditions in the Southern Ocean are becoming more treacherous for ships. According to Young, more intense storms circling the Southern Ocean can also generate larger ocean swells that propagate across the Indian, Pacific and South Atlantic. “Increasing wave conditions in the Southern Ocean impact regions across the globe,” he said.

https://www.theguardian.com/world/2019/apr/25/worlds-oceans-are-becoming-stormie...
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lee
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Re: Evidence for global warming.
Reply #118 - Apr 26th, 2019 at 3:40pm
 
Captain Nemo wrote on Apr 26th, 2019 at 12:33pm:
Others said that the role of global warming in the latest observations was yet to be established. “It’s a bit difficult to extrapolate these finding to the wider picture,” said Dr Paulo Ceppi, of the Grantham Institute at Imperial College London. “During 30-year periods you can still have pretty significant natural variations in winds.”



Oh dear. You do know 30 years is, according to the WMO, one climate period. Therefore you need at least two climate periods, preferably more, to compare before you can even intimate it is a change in climate.
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Re: Evidence for global warming.
Reply #119 - Apr 26th, 2019 at 6:45pm
 
After the hottest summer on record March was the hottest March on record, SA and Vic are on their way to being the driest on record for this time of year.

That's evidence.

Further evidence is that my favorite plum tree is now just a stick and my rainwater tanks have run out, with no rain in the foreseeable future  I am evacuating.

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« Last Edit: Apr 26th, 2019 at 6:53pm by Johnnie »  
 
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