Losing Earth: The Decade We Almost Stopped Climate Change (cities, companies, 2013)
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The temp record since the Holocene Optimum 8000 y/a has shown a downward trend, while the co2 record shows an upward trend. Negative Correlation of temp vs co2(!!)-- but it's the "deniers" who are ignoring the science?-- that little blip of warming over the last 200 yrs is just a return upward to the general downward trend line.
The propaganda position is that it is warmer than ever--it's not.
The propaganda position is that this rate of warming is unprecedented-- it's not
The propaganda position is that the warming is due to co2-- it's not.
.DC-- unless you received your degree prior to ~1980, you were not "educated," you were indoctrinated. We older students are capable of examining data and forming our own conclusions.
The temp record since the Holocene Optimum 8000 y/a has shown a downward trend, while the co2 record shows an upward trend. Negative Correlation of temp vs co2(!!)-- but it's the "deniers" who are ignoring the science?-- that little blip of warming over the last 200 yrs is just a return upward to the general downward trend line.
The propaganda position is that it is warmer than ever--it's not.
The propaganda position is that this rate of warming is unprecedented-- it's not
The propaganda position is that the warming is due to co2-- it's not.
.DC-- unless you received your degree prior to ~1980, you were not "educated," you were indoctrinated. We older students are capable of examining data and forming our own conclusions.
i received my undergraduate degree in 1972 and my graduate degree in 1979. My son got his bachelor degree in 1998 and he can wipe you up and down any technical issue you want. Stupid is a permanent condition.
The temp record since the Holocene Optimum 8000 y/a has shown a downward trend, while the co2 record shows an upward trend. Negative Correlation of temp vs co2(!!)-- but it's the "deniers" who are ignoring the science?-- that little blip of warming over the last 200 yrs is just a return upward to the general downward trend line.
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Your temperature reference is on a glacier on Greenland, not a global temp.
Please explain how the earth's climate has been changing for billions of years, long before the "Paris Accords" came into play.
We have very little control over what is going to happen. We are going to have to improvise, adapt, and overcome the changing earth. Don't you liberals get it???
Plenty of reliable data shows a strong correlation between the start of the industrial age and current climate trends. If we adapt by decreasing fossil fuel usage and other measures to slow down or decrease the severity of what is going to happen, how is that a bad thing?
Quote:
Originally Posted by dozerbear
The closest thing I've ever seen to climate change "deniers" are leftists who think if they tax us enough and tell us how to live our lives that somehow the climate won't change anymore. The climate has been changing ever since the planet formed an atmosphere and will continue to do so.
You were right about the data being easily accessible anyway. So the Roman, the medieval, and Minoan warm periods, not to mention the Holocene climate optimum all of which were warmer than it is now were natural climate variation, but this time the warming is 100% human caused?
Again, according to many, many reliable studies from scientists all over the world, there is a strong correlation between the start of the industrial age and current climate change. To quote available data: Until the past two centuries, the concentrations of CO2 and CH4 had never exceeded about 280 ppm and 790 ppb, respectively. Current concentrations of CO2 are about 390 ppm and CH4 levels exceed 1,770 ppb. Both numbers are much higher than at any time during the last 650,000 years.
Data for the past 2000 years show that the atmospheric concentrations of CO2, CH4, and N2O – three important long-lived greenhouse gases – have increased substantially since about 1750. Rates of increase in levels of these gases are dramatic. CO2, for instance, never increased more than 30 ppm during any previous 1,000-year period in this record, but has already risen by 30 ppm in the past two decades.
First, in the interest of accuracy.. in post 131, the CO2 concentration given for year "0" is 280 PPM. The last time the concentration was at that level was about 1900. In 2017, the concentation was over 400 PPM. That chart would apprear to be either intended to mislead or it only actually goes out to 1900 and someone forgot to note that?
These figures are all from a real scientific source (presentation from the Cambridge university professor) The Alsup Aftermath « RealClimate
FYI, I am not an expert enough to dispute the data from the source. I would like to hear any dispute but please let us know your credentials.
FIrst plots shows the actual CO2 concentrations going back 2000 years. Note the post in 131 seems to have stopped when the CO2 level hit about 280 PPM which corresponds to about the year 1900.
This second slide shows the temperature since 1900. Note the correlation to the CO2 PPM levels in the first slide.
Also interesting.. Its really the more current time period that makes for an apples to apples comparison as the farther you go back in time, the more variables there are. But its noted that ice didnt even start to form at the poles until the CO2 PPM level got lower than 600 PPM.
Last slide (for now..) shows the temps going back over 2000 years and the correlation of the little ice age to volcanic activity and lower solar. Not CO2 levels.
Last edited by waltcolorado; 08-08-2018 at 08:43 AM..
Reason: CO should be CO2 in the first sentance
Your temperature reference is on a glacier on Greenland, not a global temp.
Not only that . . . on that Holocene graph above (post #131), pay attention to the clear uptick at the very end of the chart. It's looks tiny in the Holocene chart -- one might even think insignificant.
Let's expand and focus on that uptick, because of its possible relevance.
Here is a reconstruction of temperature for the past 2,000 years. Notice the sharp climb in global temperature -- starting with the industrial revolution (1760 to 1820-40) -- which correlates with the rise in CO2 levels.
You guys can argue the Science all you want.... Frankly I don't think it matters at all as the Climate is what it is.... There isn't a thing you can do about it. Unless you want to kill off a large segment of the worlds population and reduce the load on the system .......We have to live with what we got and spend money developing ways to do that....
Plenty of reliable data shows a strong correlation between the start of the industrial age and current climate trends. If we adapt by decreasing fossil fuel usage and other measures to slow down or decrease the severity of what is going to happen, how is that a bad thing?
Again, according to many, many reliable studies from scientists all over the world, there is a strong correlation between the start of the industrial age and current climate change. To quote available data: Until the past two centuries, the concentrations of CO2 and CH4 had never exceeded about 280 ppm and 790 ppb, respectively. Current concentrations of CO2 are about 390 ppm and CH4 levels exceed 1,770 ppb. Both numbers are much higher than at any time during the last 650,000 years.
Data for the past 2000 years show that the atmospheric concentrations of CO2, CH4, and N2O – three important long-lived greenhouse gases – have increased substantially since about 1750. Rates of increase in levels of these gases are dramatic. CO2, for instance, never increased more than 30 ppm during any previous 1,000-year period in this record, but has already risen by 30 ppm in the past two decades.
We are absolutely not going to cut back on the use of fossil fuels. They are the lifeblood of our economy, and the key to raising the standard of living for billions of poor people. Think of something else.
Think of adaptations, not trying to control climate.
Plenty of reliable data shows a strong correlation between the start of the industrial age and current climate trends.
Again, according to many, many reliable studies from scientists all over the world, there is a strong correlation between the start of the industrial age and current climate change. To quote available data: Until the past two centuries, the concentrations of CO2 and CH4 had never exceeded about 280 ppm and 790 ppb, respectively. Current concentrations of CO2 are about 390 ppm and CH4 levels exceed 1,770 ppb. Both numbers are much higher than at any time during the last 650,000 years.
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There is also a very strong correlation between the number of home runs hit in the National league and world temperatures over the last 120 yrs. Do HRs cause global warming?
Refer back to the graph I posted: over the last 8000 yrs, there's a negative correlation between co2 & temps. There is a positive correlation over the past 200 yrs-- just a coincidence.
The emboldened passage above is patently false. Average [co2] during the planet's history has been 3000ppm and has gone as high as 8000ppm. CH4 contribution is negligible: it appears only in extremely small concentrations, it's absorption spectrum is very limited and it is rapidly oxidized to co2.
Someone else poster a graph showing current temps higher than the Medieval Warm Period-- that's the lie started by Mann of hockey stick fame. His computer program has been exposed, as I previously posted: it churns out a hockey stick graph even when random numbers are put in. All other researchers show MWP ~ 2deg warmer than current temps.
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