If this graph is right the last time CO2 was as high as 3500 ppm was around 400 million years ago. The last time it was over 1000 ppm was 100 million years ago and the last time it was as low as current levels (400 ppm) was over 15 million years ago. Asking coral species to evolve to a new level of ocean acidity in a couple of hundred years is bound to be disruptive and may take many thousands of years to recover from.
By the definition cryologists use an ice age is any time there are significant ice caps on Earth, like say Antarctica and Greenland. When the ice advances on the continents it's called a glacial and when it retreats an interglacial./pedant
But then in the popular usage a glaciation is often called an ice age so it's hard to fault you for putting it that way.
... 7.2 billion people breathing out CO2, farting out methane...
Logic Fail! The CO2 and methane emitted by animals (including humans) is all carbon neutral because the source of that carbon is already in the carbon cycle. Plants which form the base of the food chain absorb that carbon from the atmosphere. Animals release it again when they metabolize those plants. It doesn't change the net amount of carbon in the carbon cycle.
By both the NASA GISS and NOAA (and I think the updated HADCRUT4 data too) temperature records both 2005 and 2010 were warmer globally than 1998. Remember 1998 was the year of an exceptional El Nino.
If people are rejecting the message simply because they hate the messenger rather than paying attention to the reality behind the message then they're doing it wrong. Very little of what Gore has said has been found to be wrong.
In the case of New Orleans, it's the major port city at the mouth of the Mississippi and the 5th largest port in the US. For the time being at least it probably costs far more to move all of the existing infrastructure upstream and for ocean going ships to go further upstream to the port than it costs to rebuild New Orleans in place.
If you paid more attention to the time frames attached to those predictions you wouldn't be scratching your head so much. Meters of SLR and 7C of temperature rise predictions are the end result a century or more from now, not in the next decade or two and then only if we continue BAU.
It would take 58 standard semi trucks to replace 1 typical Mississippi barge and there are 15 barges in the common tow setup so that's about 870 trucks. It takes 15 rail cars to equal 1 barge or 225 rail cars for a 15 barge tow. In terms of the number of people required and the fuel used barging is much cheaper than trucking and it's cheaper than rail too.
No they use all of the data including Roy Spenser's which although showing the lowest anomaly of the various temperature records isn't that far off from the other satellite record and the several surface records.
... but for the last ten years there is an actual fall of temperature overall.
What a ridiculous statement. Here's the data. No year since 2001 has been colder than the warmest year from 2000 on back except for 1998. 2005 and 2010 are basically tied for the warmest temperature in the record, The slope of temperature rise in the 2000's is less than it was in the 1980's and 90's but it's still positive.
As the effects of climate change worsen the moral imperative to do something about it will strengthen. I think eventually we will reduce our carbon emissions to a reasonable level (which is probably close to net zero). The question is how long will it take? If the effects of climate change are bad enough it could be partly from a drastic reduction in the human population (which may be a good thing but it sucks if you're one of the reducees).
Now, the same idiots are telling us about global warming (whoops...climate change).
What you don't realize is that global warming is a subset of climate change which also includes changes in precipitation and winds and who knows what else.
The thing that makes me suspicious is that the same people -- James Hansen in particular -- were the major alarmists for an ice age back then... (emphasis added)
Oh really? Citation definitely needed for that! But I doubt you're going to find anything. Hansen, an astrophysicist, didn't switch from studying Venus to studying the Earth until around 1980 well after the ice age "alarmism" came out.
No! Temperatures have not been rising since the last ice age (that ended around 10,000 years ago). That's just another meme on the contrarian side. Temperatures reached a maximum during the Holocene climatic optimum around 8,000 years ago and have been slowly declining since. (Holocene temperature graph)
The natural climate drivers of the Milankovitch cycles and other things indicate the slow cooling should be continuing with the onset of the next glacial cycle at least 5,000 years and perhaps as much as over 20,000 years away. But recent research has found that we've probably delayed the onset of the next ice age indefinitely because of global warming.
Guys like you don't realize how utterly dependent our civilization is on those species and ecosystems. If they go tits up we may not be able to maintain enough of a civilization to power your AC.
Slashdot Mirror
If this graph is right the last time CO2 was as high as 3500 ppm was around 400 million years ago. The last time it was over 1000 ppm was 100 million years ago and the last time it was as low as current levels (400 ppm) was over 15 million years ago. Asking coral species to evolve to a new level of ocean acidity in a couple of hundred years is bound to be disruptive and may take many thousands of years to recover from.
By the definition cryologists use an ice age is any time there are significant ice caps on Earth, like say Antarctica and Greenland. When the ice advances on the continents it's called a glacial and when it retreats an interglacial. /pedant
But then in the popular usage a glaciation is often called an ice age so it's hard to fault you for putting it that way.
Get back to me when you understand that climate models don't even try to predict year by year temperatures.
The conclusions of the AR5 draft report are not significantly different than those of the AR4 report in 2007.
Your graph cuts off in 1950 and so doesn't show the last 60+ years of temperatures.
That statement just shows you fail to understand how science shows calculated uncertainty in their work. It's a standard scientific practice.
Logic Fail! The CO2 and methane emitted by animals (including humans) is all carbon neutral because the source of that carbon is already in the carbon cycle. Plants which form the base of the food chain absorb that carbon from the atmosphere. Animals release it again when they metabolize those plants. It doesn't change the net amount of carbon in the carbon cycle.
By both the NASA GISS and NOAA (and I think the updated HADCRUT4 data too) temperature records both 2005 and 2010 were warmer globally than 1998. Remember 1998 was the year of an exceptional El Nino.
If people are rejecting the message simply because they hate the messenger rather than paying attention to the reality behind the message then they're doing it wrong. Very little of what Gore has said has been found to be wrong.
In the case of New Orleans, it's the major port city at the mouth of the Mississippi and the 5th largest port in the US. For the time being at least it probably costs far more to move all of the existing infrastructure upstream and for ocean going ships to go further upstream to the port than it costs to rebuild New Orleans in place.
If you paid more attention to the time frames attached to those predictions you wouldn't be scratching your head so much. Meters of SLR and 7C of temperature rise predictions are the end result a century or more from now, not in the next decade or two and then only if we continue BAU.
An accurate and meaningful qualifier.
It would take 58 standard semi trucks to replace 1 typical Mississippi barge and there are 15 barges in the common tow setup so that's about 870 trucks. It takes 15 rail cars to equal 1 barge or 225 rail cars for a 15 barge tow. In terms of the number of people required and the fuel used barging is much cheaper than trucking and it's cheaper than rail too.
There have been some pretty impressive dust storms in Texas lately too.
Here's a rebuttal of the WSJ editorial. The scientist Ridley cites in the piece reject his analysis.
No they use all of the data including Roy Spenser's which although showing the lowest anomaly of the various temperature records isn't that far off from the other satellite record and the several surface records.
What a ridiculous statement. Here's the data. No year since 2001 has been colder than the warmest year from 2000 on back except for 1998. 2005 and 2010 are basically tied for the warmest temperature in the record, The slope of temperature rise in the 2000's is less than it was in the 1980's and 90's but it's still positive.
Excellent!
As the effects of climate change worsen the moral imperative to do something about it will strengthen. I think eventually we will reduce our carbon emissions to a reasonable level (which is probably close to net zero). The question is how long will it take? If the effects of climate change are bad enough it could be partly from a drastic reduction in the human population (which may be a good thing but it sucks if you're one of the reducees).
Now, the same idiots are telling us about global warming (whoops...climate change).
What you don't realize is that global warming is a subset of climate change which also includes changes in precipitation and winds and who knows what else.
The thing that makes me suspicious is that the same people -- James Hansen in particular -- were the major alarmists for an ice age back then ... (emphasis added)
Oh really? Citation definitely needed for that! But I doubt you're going to find anything. Hansen, an astrophysicist, didn't switch from studying Venus to studying the Earth until around 1980 well after the ice age "alarmism" came out.
No! Temperatures have not been rising since the last ice age (that ended around 10,000 years ago). That's just another meme on the contrarian side. Temperatures reached a maximum during the Holocene climatic optimum around 8,000 years ago and have been slowly declining since. (Holocene temperature graph)
The natural climate drivers of the Milankovitch cycles and other things indicate the slow cooling should be continuing with the onset of the next glacial cycle at least 5,000 years and perhaps as much as over 20,000 years away. But recent research has found that we've probably delayed the onset of the next ice age indefinitely because of global warming.
Guys like you don't realize how utterly dependent our civilization is on those species and ecosystems. If they go tits up we may not be able to maintain enough of a civilization to power your AC.
If I could still use my mod point in this post I'd give you a +5 Bust Your Gut Funny!
No, when the Republicans are in power they don't care about deficits either.
And we're still borrowing most of it from ourselves. China only holds about 8% of US public debt.