Troy you need a little help to say the least. Maybe this will help
Troy you need a little help to say the least. Maybe this will help
Graph means nothing as it stands, are you going to link to a source?
Have you bothered to read those articles. How can the sun be said to be currently stable, when it has been shown not to be, and yet it was the cause of the Medieval warm period? Have you spotted that little contradiction yet?
Any explanation for the enormous levels of CO2 during the Cambrian period? Were they all man made?
It’s in here someplace RealClimate: Blog – realclimate.org – All Posts.
You’re not going to like it. It’s filled with climate science written by some of the best climate scientist out there.
Facts!
And no it’s not the sun.![]()
I’m not here to answer your question/s.
Where are they?
Show support with credible links.
Do yourself a favor. Read the link above first before you ask a question, I will not answer. What does past climate change tell us about global warming?
Indeed, where is that hard evidence. So far you have only provided theories and mainly from the same blog.
Only if you fail to read the evidence that suggests it may be a contributing factor.
I don't need any theories. You have failed to convince me so need to try harder.
still waiting climate denier
^
What are you doing about all the methane the cattle on your ranch emit, Landreth?
Temperatures near 50C in central-western WA
Back to the extreme heat in parts of Western Australia:
Parts of the Gascoyne and Central West regions neared 50C yesterday, as residents in northern Perth had to evacuate due to a bushfire which has since been controlled.
According to Weatherzone, the following temperatures were recorded yesterday:
- 49.9C at Carnarvon Airport – the highest temperature recorded in the world so far in 2024
- 49.8C at Shark Bay Airport, near Denham – a station record
- 49.3C at Geraldton in the Central West – the hottest day on record for the town.
Keep your friends close and your enemies closer.
It's 10C in Newcastle Upon Tyne, north east England. Nothing to see here. Move along please.
Troy, your theories are needed.
February on course to break unprecedented number of heat records
February is on course to break a record number of heat records, meteorologists say, as human-made global heating and the natural El Niño climate pattern drive up temperatures on land and oceans around the world.
A little over halfway into the shortest month of the year, the heating spike has become so pronounced that climate charts are entering new territory, particularly for sea-surface temperatures that have persisted and accelerated to the point where expert observers are struggling to explain how the change is happening.
“The planet is warming at an accelerating rate. We are seeing rapid temperature increases in the ocean, the climate’s largest reservoir of heat,” said Dr Joel Hirschi, the associate head of marine systems modelling at the UK National Oceanography Centre. “The amplitude by which previous sea surface temperatures records were beaten in 2023 and now 2024 exceed expectations, though understanding why this is, is the subject of ongoing research.”
Humanity is on a trajectory to experience the hottest February in recorded history, after a record January, December, November, October, September, August, July, June and May, according to the Berkeley Earth scientist Zeke Hausfather.
He said the rise in recent weeks was on course for 2C of warming above pre-industrial levels, though this should be the brief, peak impact of El Niño if it follows the path of previous years and starts to cool down in the months ahead.
Sea surface temperatures for 2024 exceed previous records by a huge margin
Average daily sea surface temperature, 60S to 60N, C
Once you have got past the first hurdle I'll move to the next one. So far you have failed.
Let's try again.
You linked to a source that explains it is not the sun. The sun jas been radiating the same amount of energy towards the earth for thousands of years with an 11 year cycle.
The same source then explains away the medieval warming period as being caused by sun activity, or at least a contributing factor.
I have provided peer reviewed research that shows the sun has not been radiating with such stable power as assumed but has shown strong activity in the last 150 years.
So to write off the sun as being a contributing factor is incorrect and contradictory.
Explain that contradiction and we can move on.
It’s not the sun……..
Firstly, evidence suggests that the Medieval Warm Period may have been warmer than today in many parts of the globe such as in the North Atlantic. This warming thereby allowed Vikings to travel further north than had been previously possible because of reductions in sea ice and land ice in the Arctic. However, evidence also suggests that some places were very much cooler than today including the tropical pacific. All in all, when the warm places are averaged out with the cool places, it becomes clear that the overall warmth was likely similar to early to mid 20th century warming.
Since that early century warming, temperatures have risen well-beyond those achieved during the Medieval Warm Period across most of the globe. The National Academy of Sciences Report on Climate Reconstructions in 2006 found it plausible that current temperatures are hotter than during the Medieval Warm Period. Further evidence obtained since 2006 suggests that even in the Northern Hemisphere where the Medieval Warm Period was the most visible, temperatures are now beyond those experienced during Medieval times (Figure 1). This was also confirmed by a major paper from 78 scientists representing 60 scientific institutions around the world in 2013.
Secondly, the Medieval Warm Period has known causes which explain both the scale of the warmth and the pattern. It has now become clear to scientists that the Medieval Warm Period occurred during a time which had higher than average solar radiation and less volcanic activity (both resulting in warming). New evidence is also suggesting that changes in ocean circulation patterns played a very important role in bringing warmer seawater into the North Atlantic. This explains much of the extraordinary warmth in that region. These causes of warming contrast significantly with today's warming, which we know cannot be caused by the same mechanisms.
Overall, our conclusions are:
a) Globally temperatures are warmer than they have been during the last 2,000 years, and
b) the causes of Medieval warming are not the same as those causing late 20th century warming.
still waiting for “Lots of theories”
![]()
^ Yes, it's taking time for that point to sink in.
The lots of theories is based on your global warming links. Nothing to do with me. Is that all you have as a comeback?
You still haven't explained this simple contradiction.
butt still stinging climate denier![]()
Climate denier? How childish! Is this the only way you can debate?
I didn't leave out the other 2 factors at all, just breaking down the argument slowly.
Next we come to low volcanic activity, the second reason given. How low was the low activity then, and how does it compare to now. Actually, despite a reasonable time searching I couldn't find an answer. No pretty graph to show the difference. Perhaps you have one?
I looked at another of your links and it explained all about fossil fuels having their own CO2 fingerprint when burnt. However, digging a little deeper, I find it doesn't really. It is plain old C12, just like people and animals exhale, the earth vents into the sea and air, agricultural land gives off etc.
The fingerprint is really with volcanic activity and emission of C13. So a lack of C13 suggests low volcanic activity and there we have the second reason given for the Medieval warming period. Now we have 2 of the 3 reasons given actually applying to the current time as well.
Last edited by Troy; 19-02-2024 at 04:29 PM. Reason: typos
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