Global Warming on Free Republic
Posted on 05/01/2014 10:20:56 AM PDT by NormsRevenge
There's striking new evidence that Earth's atmosphere is increasingly saturated with carbon dioxide, the major gas from fossil fuel emissions that trigger climate change.
...
"This should be taken as a warning," said Ken Caldeira, an atmospheric scientist with the Carnegie Institution's department of global ecology at Stanford University. "It is time to stop building things with tailpipes and smokestacks.
"It is time to stop using the sky as a waste dump for our carbon dioxide pollution. If we fail to heed this warning, our children will end up living in a world that is much hotter than any human being has ever experienced."
The instruments that have been measuring carbon dioxide for more than 50 years showed that for the entire month of April, levels of the gas exceeded 400 parts per million for the first time, said Pieter Tans, a climate scientist at the National Oceanic and Atmospheric Agency who monitors the instrument record.
The precise average for the entire month was 401.25 parts per million as of Tuesday, he said, and that level had only reached the crucial 400 threshold for the first time during a single day a year ago before dipping slightly.
(Excerpt) Read more at sfgate.com ...
I wonder how much methane a planetful of dinosaurs could make? Did they cause their own extinction via global warming?
No smoking hot spot1. The greenhouse signature is missing. We have been looking and measuring for years, and cannot find it.
Each possible cause of global warming has a different pattern of where in the planet the warming occurs first and the most. The signature of an increased greenhouse effect is a hot spot about 10km up in the atmosphere over the tropics. We have been measuring the atmosphere for decades using radiosondes: weather balloons with thermometers that radio back the temperature as the balloon ascends through the atmosphere. They show no hot spot. Whatsoever.
If there is no hot spot then an increased greenhouse effect is not the cause of global warming. So we know for sure that carbon emissions are not a significant cause of the global warming. If we had found the greenhouse signature then I would be an alarmist again.
/s (if necessary)
Global Warming on Free Republic
I have copied your images mercilessly without atrribution. :-)
PING to #66.
>>Very Very good for the Plants
It is quite common for greenhouses to inject additional CO2 to maintain around 1000 ppm. If you search around, it is easy to find suppliers of such systems.
Clearly the CO2 Warmists hate poor people and want to starve them.
...during that 50 year span, which does not include prior periods when it was ten or more times that high, and life thrived.
I remember when they said this concentration would be a global disaster.
I remember protesters caring 400 signs.
Considering CO2 is a trailing indicator, it would stand to reason that it would continue to rise even after the temperature leveled off.
So, wait for it.
If there really is a problem, we can always panic later.
To be as scientifically imprecise as the moonbats, since it takes carbon content to make ordinary iron into steel, maybe we need to mine more iron to sequester carbon in by making steel, and then build things with the steel...
Same measurement has been made worldwide although a little lower and less annual wiggle in the southern hemisphere.
True. But while natural CO2 lags warming, manmade made CO2 is far higher than what we would get from warming after the Little Ice Age. With about a 1C naturak rise in temperature we should see 5-10 ppm rise in CO2. Instead there is a 120 ppm rise so far.
That is true. But the rise in CO2 is about 5-10 ppm per 1C rise in temperature. So we can say that 5-10ppm of the current is natural, the rest is almost certainly manmade. There's a tiny bit of wiggle room for outgassing we are not aware of and smooothing of ice cores, but not much.
Possible in the cold direction. But volcanoes don't put out much CO2 compared to humans so not in the warm direction. Your greater point is valid though, there is a lot of thermal inertia and negative feedback that would prevent any such catastrophe.
“Isn’t it convenient how all the important “thresholds” are in decimal?”
Yes, that’s how you know they are being pulled out of someones a$$.
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