The wheels we humans have set in motion concerning carbon dioxide emissions and climate change are going to take some stopping, and the latest data from Hawaii’s Mauna Loa Observatory are another clear indicator of this. Scientists there have logged record concentrations of CO2 in the atmosphere, in line with a steady trend that defies even the widespread and stringent slowdown in global activity as a result of the coronavirus pandemic.

During the 1960s when carbon concentrations were in the low 300s ppm, levels rose gradually at a rate of around 0.9 ppm per year. Fast-forward to the 2010 to 2019 period, and concentrations increased at a rate of 2.4 ppm per year, indicating that upward trend is only accelerating.

In May last year, scientists at the Mauna Loa Observatory recorded an atmospheric carbon dioxide concentration of 415.26 ppm. This was a level never reached before, but has been upstaged just 12 months later with a new reading of 416.21 ppm. Using ice core records to measure CO2 concentrations across the planet’s history, scientists from the National Oceanic and Atmospheric Association (NOAA) confirm these levels have not been seen on Earth in 800,000 years.

https://newatlas.com/environment/atmospheric-co2-record-heights-global-pandemic/

well thank politics for that, can’t let à little inconvénient COVID-19 get in the way of the economy and worldwide destruction

PermeateFree said:

The wheels we humans have set in motion concerning carbon dioxide emissions and climate change are going to take some stopping, and the latest data from Hawaii’s Mauna Loa Observatory are another clear indicator of this. Scientists there have logged record concentrations of CO2 in the atmosphere, in line with a steady trend that defies even the widespread and stringent slowdown in global activity as a result of the coronavirus pandemic.

During the 1960s when carbon concentrations were in the low 300s ppm, levels rose gradually at a rate of around 0.9 ppm per year. Fast-forward to the 2010 to 2019 period, and concentrations increased at a rate of 2.4 ppm per year, indicating that upward trend is only accelerating.

In May last year, scientists at the Mauna Loa Observatory recorded an atmospheric carbon dioxide concentration of 415.26 ppm. This was a level never reached before, but has been upstaged just 12 months later with a new reading of 416.21 ppm. Using ice core records to measure CO2 concentrations across the planet’s history, scientists from the National Oceanic and Atmospheric Association (NOAA) confirm these levels have not been seen on Earth in 800,000 years.

https://newatlas.com/environment/atmospheric-co2-record-heights-global-pandemic/

it maybe doubly important because long cooling periods are structurally condensative of global climate, and in a way same of organic life with that

transition said:

structurally condensative of global climate

What does that mean?

The Rev Dodgson said:

transition said:

structurally condensative of global climate

What does that mean?

as the energy level declines (trapped energy) it’s transformed into material structure

consider a more immediate daily thermal cycles of day and night, these embed order, essentially clock the transformation of thermal energy into hard structure if you like, similar of seasons, and over hundreds and thousands of years of climate also, similar happens

so, my point, speculation, granted, is the condensative gradients are important to building climate structure, and organic structure related

I’m increasingly pessimistic about keeping this under 600. It’s not going to happen without strong leadership in the USA and there is such a mass of ignorance and apathy that it might take another 10 years to get strong climate action there, and then it wil be another 20 years before the ship really turns. By then the path to 600 is baked in.

From Mauna Loa global monitoring laboratory.

Still only 1.5 times pre-industrial levels.

mollwollfumble said:

From Mauna Loa global monitoring laboratory.

Still only 1.5 times pre-industrial levels.

LOL, yeah percentagewise. Sheesh.

Winter is coming

https://youtu.be/xPpXHX-Tu5U

ChrispenEvan said:

mollwollfumble said:

From Mauna Loa global monitoring laboratory.

Still only 1.5 times pre-industrial levels.

LOL, yeah percentagewise. Sheesh.

My goodness! Who knew pre industrial times was pre 1970?

we are heading into a maunder minimum

the sun has been very quiet recently

buffy said:

mollwollfumble said:

From Mauna Loa global monitoring laboratory.

Still only 1.5 times pre-industrial levels.

My goodness! Who knew pre industrial times was pre 1970?

No!

Pre-industrial is 1938 if I remember correctly.

By 1970, CO2 was already 45 ppm above pre-industrial levels.
By 1960, CO2 was 35 ppm above pre-industrial levels.
By 2020, CO2 is 140 ppm above the pre-industrial 280 ppm. Almost exactly 1.5 times pre-industrial levels.

mollwollfumble said:

buffy said:

mollwollfumble said:

From Mauna Loa global monitoring laboratory.

Still only 1.5 times pre-industrial levels.

My goodness! Who knew pre industrial times was pre 1970?

No!

Pre-industrial is 1938 if I remember correctly.

By 1970, CO2 was already 45 ppm above pre-industrial levels.
By 1960, CO2 was 35 ppm above pre-industrial levels.
By 2020, CO2 is 140 ppm above the pre-industrial 280 ppm. Almost exactly 1.5 times pre-industrial levels.

I thought the Industrial Revolution occurred in Britain in the late 18th and 19th centuries, brought about by the introduction of machinery. It was characterized by the use of steam power.

mollwollfumble said:

buffy said:

mollwollfumble said:

From Mauna Loa global monitoring laboratory.

Still only 1.5 times pre-industrial levels.

My goodness! Who knew pre industrial times was pre 1970?

No!

Pre-industrial is 1938 if I remember correctly.

By 1970, CO2 was already 45 ppm above pre-industrial levels.
By 1960, CO2 was 35 ppm above pre-industrial levels.
By 2020, CO2 is 140 ppm above the pre-industrial 280 ppm. Almost exactly 1.5 times pre-industrial levels.

The cut-off for “pre-industrial” era is of course arbitrary, but this graph (doesn’t work in Edge!):
https://www.co2levels.org/

Shows a reasonably steady rise in rate of increase since the late 18th Century, when the figure was 280 ppm, so 1775 seems like a reasonable arbitrary date to choose.

The % increase is indeed 50%, although why this should be preceded by “still only” is a mystery to me.

Tamb said:

mollwollfumble said:

buffy said:

My goodness! Who knew pre industrial times was pre 1970?

No!

Pre-industrial is 1938 if I remember correctly.

By 1970, CO2 was already 45 ppm above pre-industrial levels.
By 1960, CO2 was 35 ppm above pre-industrial levels.
By 2020, CO2 is 140 ppm above the pre-industrial 280 ppm. Almost exactly 1.5 times pre-industrial levels.

I thought the Industrial Revolution occurred in Britain in the late 18th and 19th centuries, brought about by the introduction of machinery. It was characterized by the use of steam power.

I think you are right :)

The agricultural revolution was probably significant as well.

The Rev Dodgson said:

Tamb said:

mollwollfumble said:

No!

Pre-industrial is 1938 if I remember correctly.

By 1970, CO2 was already 45 ppm above pre-industrial levels.
By 1960, CO2 was 35 ppm above pre-industrial levels.
By 2020, CO2 is 140 ppm above the pre-industrial 280 ppm. Almost exactly 1.5 times pre-industrial levels.

I thought the Industrial Revolution occurred in Britain in the late 18th and 19th centuries, brought about by the introduction of machinery. It was characterized by the use of steam power.

I think you are right :)

The agricultural revolution was probably significant as well.

It’s all that burning of that evil coal.

The Rev Dodgson said:

mollwollfumble said:

buffy said:

My goodness! Who knew pre industrial times was pre 1970?

No!

Pre-industrial is 1938 if I remember correctly.

By 1970, CO2 was already 45 ppm above pre-industrial levels.
By 1960, CO2 was 35 ppm above pre-industrial levels.
By 2020, CO2 is 140 ppm above the pre-industrial 280 ppm. Almost exactly 1.5 times pre-industrial levels.

The cut-off for “pre-industrial” era is of course arbitrary, but this graph (doesn’t work in Edge!):
https://www.co2levels.org/

Shows a reasonably steady rise in rate of increase since the late 18th Century, when the figure was 280 ppm, so 1775 seems like a reasonable arbitrary date to choose.

The % increase is indeed 50%, although why this should be preceded by “still only” is a mystery to me.

Well, fastest worldwide forest growth is achieved when the percentage increase reaches 100%. ;-)

The Rev Dodgson said:

The cut-off for “pre-industrial” era is of course arbitrary, but this graph (doesn’t work in Edge!):
https://www.co2levels.org/

Shows a reasonably steady rise in rate of increase since the late 18th Century, when the figure was 280 ppm, so 1775 seems like a reasonable arbitrary date to choose.

The % increase is indeed 50%, although why this should be preceded by “still only” is a mystery to me.

Actually the graphs don’t work very well in Chrome either, but if you go to another graph, then click back on the one you want it seems to re-draw OK.

I’ve switched off autoreplace which was making needless corrections while also skipping some obvious ones. Like it changed Mick to Nick without asking, but apparently was stumped by eifferent.

The prosecution is willing to stipulate that moll’s estimate of a 50% increase in CO2 over pre-industrial levels is a fair approximation.

mollwollfumble said:

buffy said:

mollwollfumble said:

From Mauna Loa global monitoring laboratory.

Still only 1.5 times pre-industrial levels.

My goodness! Who knew pre industrial times was pre 1970?

No!

Pre-industrial is 1938 if I remember correctly.

By 1970, CO2 was already 45 ppm above pre-industrial levels.
By 1960, CO2 was 35 ppm above pre-industrial levels.
By 2020, CO2 is 140 ppm above the pre-industrial 280 ppm. Almost exactly 1.5 times pre-industrial levels.

Yeah, but – that graph starts at 1970 and the heading says it relates to post industrial times.

buffy said:

mollwollfumble said:

buffy said:

My goodness! Who knew pre industrial times was pre 1970?

No!

Pre-industrial is 1938 if I remember correctly.

By 1970, CO2 was already 45 ppm above pre-industrial levels.
By 1960, CO2 was 35 ppm above pre-industrial levels.
By 2020, CO2 is 140 ppm above the pre-industrial 280 ppm. Almost exactly 1.5 times pre-industrial levels.

Yeah, but – that graph starts at 1970 and the heading says it relates to post industrial times.

To be fair to the graph-drawers, I think the heading could be considered ambiguous.

i.e. the numbers show change from “pre-industrial” times, but it isn’t actually showing the entire “industrial” period.