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originally posted by: jrod
So the 45% increase of CO2 in the atmosphere that is a direct result of anthropogenic activity, mostly burning fossil fuels will not have consequences?
The rate is also increasing, in my lifetime that value maybe 100%+. Only those ignorant of science will argue this is not significant.
originally posted by: jrod
So the 45% increase of CO2 in the atmosphere that is a direct result of anthropogenic activity, mostly burning fossil fuels will not have consequences?
The rate is also increasing, in my lifetime that value maybe 100%+. Only those ignorant of science will argue this is not significant.
Numerical experiments with the previous model version (INMCM4) for CMIP5 showed unrealistic gradual warming in 1950–2014. The difference between the two model results could be explained by more accurate modeling of the stratospheric volcanic and tropospheric anthropogenic aerosol radiation effect (stabilization in 1950–1970) due to the new aerosol block in INM-CM5 and more accurate prescription of the TSI scenario (stabilization in 2000–2014) in the CMIP6 protocol.
originally posted by: Krakatoa
Like this? Sure looks like a rhythmic cycle of the warming of the planet Earth to me.
Data from the ice-core samples collected at the Vostock station in Antarctica.
It seems to be a natural cycle, and if we try to mess with it there's a good chance it will bite us in the ass in some way.
originally posted by: Phage
a reply to: Blue Shift
It seems to be a natural cycle, and if we try to mess with it there's a good chance it will bite us in the ass in some way.
If one were to go by that cycle, things should be cooling down. Look closely at it that chart.
originally posted by: TiredofControlFreaks
a reply to: jrod
Now CO2 has been higher in the past and has been lower in the past. Don't know what caused it to up or down.
However, you must know what optimum amount of CO2 in the atmospere is???
Right now the earth is loving the amount of CO2 and greened by 14 %
www.nasa.gov...
I guess that is bad too?
originally posted by: jrod
originally posted by: TiredofControlFreaks
a reply to: jrod
Now CO2 has been higher in the past and has been lower in the past. Don't know what caused it to up or down.
However, you must know what optimum amount of CO2 in the atmospere is???
Right now the earth is loving the amount of CO2 and greened by 14 %
www.nasa.gov...
I guess that is bad too?
Never in the history of civilization has CO2 been this high.
“According to this research, from the first Homo erectus, which is currently dated to 2.1 to1.8 million years ago, until 1965, we have lived in a low-carbon dioxide environment — concentrations were less than 320 parts per million,” said Yige Zhang, a co-author of the research study and an assistant professor in the Department of Oceanography in the College of Geosciences.
You mean by reducing carbon emissions? The longer we wait the harder it will be to do any "correcting."
After all, if we really did kick over the spittoon on this, what makes us think that we have the knowledge and expertise to appropriately correct it?
According to the American Meteorological Society's State of the Climate in 2018, 2018 came in as the fourth warmest year on record in all four of the major global temperature datasets. Only 2015, 2016, and 2017 were warmer. The warmth occurred in the absence of El Niño, which is usually a factor in extreme global warmth. In fact, la Niña was in place across the tropical Pacific from January–April, and it left an imprint on the region's temperatures, as shown in the annual map.
originally posted by: Phage
a reply to: Blue Shift
You mean by reducing carbon emissions? The longer we wait the harder it will be to do any "correcting."
After all, if we really did kick over the spittoon on this, what makes us think that we have the knowledge and expertise to appropriately correct it?
Here’s that USCRN data, from January 2005 through September of 2017, and I’ve added (in red) a trend line estimated by linear regression:
The estimated trend is upward, but its uncertainty is large because the time covered is so short. I estimate the warming rate at 10 ± 14 °F/century (95% confidence limits). Because the uncertainty is so large, we say that the claim the trend is upward fails to reach “statistical significance.”
The upshot is that, as good as the USCRN data are, they don’t cover a long enough time span to give us any useful information about the trend. Let’s face facts: “between -4 and +24 °F/century” tells us just about nothing we didn’t already know. If you were to tout the trend estimate from USCRN data alone, to draw any conclusion or even to imply any conclusion, you’d be wrong.
originally posted by: jrod
a reply to: bluesjr
You did not link NOAA there, nice try at trickery.
It also includes current data which invalidates Phage's trend line.