[Petrochemicals (OP)]

Extraordinary temperatures in the North hemisphere at present, dry which would suggest some sort of jet stream anomily and also strange goings on down under, more snowfall and frigid temperatures.

https://planetski.eu/2021/08/10/new-zealand-ski-areas-pounded-by-heavy-snow/

https://www.inthesnow.com/incredible-snowfalls-in-australia/

https://en.mercopress.com/2021/07/29/cold-wave-brings-snow-to-several-brazilian-cities-in-the-state-of-rio-grande-do-sul

https://www.bbc.co.uk/news/world-us-canada-57654133

https://www.severe-weather.eu/europe-weather/heat-dome-mediterranean-extreme-heatwave-italy-spain-mk/

Yet the weather 6 months prior was just as bipolar.

https://12tomatoes.com/snow-in-texas/

https://www.bbc.co.uk/news/world-australia-55791319.amp

You could call it global warming, but to me it seems like the seasons are becoming more extreme, the summer being pushed further toward the poles, winter extending further from.

[Colin2B]

Extraordinary temperatures in the North hemisphere at present, dry which would suggest some sort of jet stream anomily

Doesn’t look particularly anomalous. We have high pressure sitting to the south drawing hot dry air off the continent.
Certainly continental temperatures, particularly far Mediterranean look very high. Don’t fancy going there for hols.

[chiralSPO]

I think it is "global wierding"

Of course, it's not good practice to confuse weather (stochastic events localized in time and space) and climate (overall systematic view with global spatial extent, and spanning several years). But I agree, 2021 has seen SO MANY weather events absolutely smash previous records (and it is continuing trends observed over the last few decades), so we can now safely say that we are seeing the effects of climate change.

This list of 2021 "most" extreme events only goes to a few weeks ago:
https://www.theweek.co.uk/news/environment/953574/worlds-most-extreme-weather-events-2021

So it doesn't include the gobsmacking rain in Italy over the last week (what does 29 inches (740 mm) of rain in 12 hours even look like? a faucet?):
https://www.cnn.com/2021/10/06/weather/italy-flood-oman-climate-change/index.html

Please, let us try to reverse course as quickly as possible!

[Petrochemicals (OP)]

So it doesn't include the gobsmacking rain in Italy over the last week (what does 29 inches (740 mm) of rain in 12 hours even look like? a faucet?):
https://www.cnn.com/2021/10/06/weather/italy-flood-oman-climate-change/index.html

Please, let us try to reverse course as quickly as possible!

I have experienced 5 inches in 1.5 hours, that was quite something,  the heaviest rain you have experience but it just does not relent.

[alancalverd]

Interesting TV program last night about pre-Egyptian civilisation in north Africa. Rock art and various fossil finds suggest that around 10,000 BC the Sahara was fertile and supported all the large animals that are now confined further south, plus a small  human population that by 6000 BC had developed agriculture and herding. The whole area was devastated by....er...climate change. Obviously caused by worshipping the wrong gods, or cheap air travel.

Climate is inherently chaotic. Instead of blaming each other (it's never "me", because as a World Leader* I absolutely have to travel halfway across the world to attend the conference in Glasgow where we blame each other by inference) for something completely beyond our control, we should learn to live with it.


*Funny, that. I've never heard of  you, says Fred the Termite.

[Petrochemicals (OP)]

Interesting TV program last night about pre-Egyptian civilisation in north Africa. Rock art and various fossil finds suggest that around 10,000 BC the Sahara was fertile and supported all the large animals that are now confined further south, plus a small  human population that by 6000 BC had developed agriculture and herding. The whole area was devastated by....er...climate change. Obviously caused by worshipping the wrong gods, or cheap air travel.

Climate is inherently chaotic. Instead of blaming each other (it's never "me", because as a World Leader* I absolutely have to travel halfway across the world to attend the conference in Glasgow where we blame each other by inference) for something completely beyond our control, we should learn to live with it.


*Funny, that. I've never heard of  you, says Fred the Termite.

That is to do with the earth ossilation I believe, and dare I say the milankovich  cycles, the Sahara shall be green again.

[Bored chemist]

we should learn to live die with it.

FTFY
Unless you actually do something about it (and we can).

[Zer0]

2020 & 2021 were/are Lockdown Years.

Most of Us sat Indoors.
Lot of pattern changes in the ambience of the environment, Right?

Perhaps Our drastic change in actions might somehow explain the " Weird " Climate.

Probably once Everything kicks back in full motion, say 2022 onwards, then maybe it would be Weather as Usual/Normal.

(Guess Work)
✌️

[chiralSPO]

2020 & 2021 were/are Lockdown Years.

Most of Us sat Indoors.
Lot of pattern changes in the ambience of the environment, Right?

Perhaps Our drastic change in actions might somehow explain the " Weird " Climate.

Probably once Everything kicks back in full motion, say 2022 onwards, then maybe it would be Weather as Usual/Normal.

(Guess Work)
✌️

Interesting guesswork... but that does not seem to me to be consistent with the evidence before us* (at least it is a verifiable hypothesis, and we shall see if things return to normal as the economy lurches forward, or if it continues to spiral out of control)

*2020, and then 2021, were both record-breaking on many levels (high and low temps, hurricanes/typhoons, fires, draughts and floods, etc.) But it's not like they were completely out of the trend: the 2018–2019 Australian fires foreshadowed what we saw in 2019-2020, and the wildfires in California have clearly been trending upward over the last few decades (https://www.valuepenguin.com/wildfire-statistics)

Screen Shot 2021-10-15 at 3.51.36 PM.png (341.29 kB . 1452x888 - viewed 2016 times)

And tropical storms in the Atlantic have been increasing (at an increasing rate) over the last several decades as well.

number-of-named-storms-and-hurricanes-1.png (318.42 kB . 1747x1211 - viewed 2020 times)

[Petrochemicals (OP)]

2020 & 2021 were/are Lockdown Years.

Most of Us sat Indoors.
Lot of pattern changes in the ambience of the environment, Right?

Perhaps Our drastic change in actions might somehow explain the " Weird " Climate.

Probably once Everything kicks back in full motion, say 2022 onwards, then maybe it would be Weather as Usual/Normal.

(Guess Work)
✌️

Record breaking fires last year, record breaking hurricanes last year, this year not so, but there is unheard of cold in Brazil and Australia, heat pushing further toward the pole in summer, coldfurther toward the equator winter. The weather is literally shifting.

I realise summer and winter as I speak are both at the same time.

[alancalverd]

2020 & 2021 were/are Lockdown Years.

Most of Us sat Indoors.
Lot of pattern changes in the ambience of the environment, Right?

Perhaps Our drastic change in actions might somehow explain the " Weird " Climate.

But if you look at the Mauna Loa data, there is nothing to suggest that 2020 or 2021 (so far) were in any way different from any other year in terms of temperature and CO2 concentration. Which casts a shadow of doubt on the importance of the anthropogenic contribution to either.

[Bored chemist]

But if you look at the Mauna Loa data, there is nothing to suggest that 2020 or 2021 (so far) were in any way different from any other year in terms of temperature and CO2 concentration.

Because there was very little change in the consumption of fossil fuel

About 9% drop in oil use this year.
https://www.statista.com/statistics/271823/daily-global-crude-oil-demand-since-2006/

About a 3% drop in coal use
https://www.iea.org/data-and-statistics/charts/world-coal-consumption-1978-2020

[alancalverd]

So ~12% decrease in the principal acknowledged sources of anthropogenic CO2, with no discernible effect.

[Bored chemist]

But if you look at the Mauna Loa data, there is...

...This

[Petrochemicals (OP)]

So ~12% decrease in the principal acknowledged sources of anthropogenic CO2, with no discernible effect.

Yes but co2 is a build up, over time, that's what they are stating is the source of global warming. You wouldn't expect it to show changes anytime soon.

What is mauna loa co2 anyway?

[Bored chemist]

What is mauna loa co2 anyway?

Is Google broken?

[alancalverd]

But if you look at the Mauna Loa data, there is...

...This

A line drawn through recent monthly maxima might convince a politician but it doesn't look like the least squares fit of the rest of the temperature curve. I wonder who drew it, and why?

The oscillation amplitude and mean trend of the CO2 value do not appear to have changed.

Nevertheless it's interesting to look at the fine detail. What, I wonder, accounts for the annual CO2 inflection around Jan - Mar each year? The problem of climate change is too important to be brushed aside with facile hypotheses.

[Bored chemist]

I wonder who drew it, and why?

I drew it, in Microsoft Paint.
I did so to drive home the fact that you had made an assertion without evidence.
I produced some really shoddy evidence and, in this instance, that wins.

The problem of climate change is too important to be brushed aside with facile hypotheses.

Such as

But if you look at the Mauna Loa data, there is nothing to suggest that 2020 or 2021 (so far) were in any way different from any other year in terms of temperature and CO2 concentration. Which casts a shadow of doubt on the importance of the anthropogenic contribution to either.

[alancalverd]

My evidence is on the Mauna Loa website, untainted by prejudice, preconception, misrepresentation or bad drawing. In fact it's the curve you used, without the misleading straight line.

Misrepresentation of data always weakens the case.

[Bored chemist]

My evidence is on the Mauna Loa website, untainted by prejudice, preconception, misrepresentation or bad drawing. In fact it's the curve you used, without the misleading straight line.

Misrepresentation of data always weakens the case.

Your data supports my lines.