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CO2 emissions from fossil-fuel burning and industrial processes have been accelerating at a global scale, with their growth rate increasing from 1.1% y−1 for 1990–1999 to >3% y−1 for 2000–2004. The emissions growth rate since 2000 was greater than for the most fossil-fuel intensive of the Intergovernmental Panel on Climate Change emissions scenarios developed in the late 1990s.
The official thermometers at the U.S. National Climate Data Center show a slight global cooling trend over the last seven years, from 1998 to 2005.
Actually, global warming is likely to continue—but the interruption of the recent strong warming trend sharply undercuts the argument that our global warming is an urgent, man-made emergency. The seven-year decline makes our warming look much more like the moderate, erratic warming to be expected when the planet naturally shifts from a Little Ice Age (1300–1850 AD) to a centuries-long warm phase like the Medieval Warming (950–1300 AD) or the Roman Warming (200 BC– 600 AD).
The stutter in the temperature rise should rein in some of the more apoplectic cries of panic over man-made greenhouse emissions. The strong 28-year upward trend of 1970–1998 has apparently ended.
CHURCHVILLE VA—Now it’s not just the sunspots that predict a 23-year global cooling. The new Jason oceanographic satellite shows that 2007 was a “cool” La Nina year—but Jason also says something more important is at work: The much larger and more persistent Pacific Decadal Oscillation (PDO) has turned into its cool phase, telling us to expect moderately lower global temperatures until 2030 or so.
Originally posted by Waldy
Yeah, you can spin this like this but the reality is that it causes global warming that triggers the natural cooling system of the earth to go on overdrive resulting in dramatic cooling. Add the solar minimum to the equation and you get even more cooling.
It has also been debated that we delayed the coming ice age with co2 emissions.
Originally posted by Waldy
reply to post by Outlawstar
Its not true that there has been far more co2 in the atmosphere in the past. You need to go 500 million years back to see equal amount of co2 as we have today.
Edit for source: www.pnas.org...
[edit on 16-12-2008 by Waldy]
Originally posted by Waldy
I have posted a link to a scientific study that proofs the CO2 levels have not been as high as today for the past 500 million years. What have you done other than just claim the opposite without posting any source or evidence?
Post your source or stop talking nonsense!
Edit: This is a reply to Outlawstar.
[edit on 17-12-2008 by Waldy]
Quote 1: The AP said: "Carbon dioxide, the gas largely blamed for global warming, has reached record-high levels in the atmosphere after growing at an accelerated pace in the past year..."
Facts: Carbon dioxide is not the major greenhouse gas (water vapor is).2
Carbon dioxide accounts for less than ten percent of the greenhouse effect, as carbon dioxide's ability to absorb heat is quite limited.3
Only about 0.03 percent of the Earth's atmosphere consists of carbon dioxide (nitrogen, oxygen, and argon constitute about 78 percent, 20 percent, and 0.93 percent of the atmosphere, respectively).4
The sun, not a gas, is primarily to "blame" for global warming -- and plays a very key role in global temperature variations as well.
Quote 2: The AP said: "Carbon dioxide, mostly from burning of coal, gasoline and other fossil fuels, traps heat that otherwise would radiate into space."
Fact: Most of the carbon dioxide in the atmosphere does not come from the burning of fossil fuels. Only about 14 percent of it does.5
Quote 3: The AP said: "Global temperatures increased by about 1 degree Fahrenheit (0.6 degrees Celsius) during the 20th century, and international panels of scientists sponsored by world governments have concluded that most of the warming probably was due to greenhouse gases."
Facts: Most of 20th Century global warming occurred in the first few decades of that century,6 before the widespread burning of fossil fuels (and before 82 percent of the increase in atmospheric CO2 observed in the 20th Century7).
The Earth does not have "world governments." It doesn't even have even one, as the United Nations is not a government, but an association of nations.
If the AP is referring to the United Nations' Intergovernmental Panel on Climate Change, the AP should become aware that the IPCC report itself (the part written by scientists) reached no consensus on climate change. What did reach a conclusion was an IPCC "summary for policymakers" prepared by political appointees.8 Most reporters quote only the summary, being either too lazy or too undereducated to understand the actual report. This does not explain, however, why reporters don't more frequently interview scientists who helped prepare it -- scientists such as IPCC participant Dr. Richard Lindzen of MIT, who says the IPCC report is typically "presented as a consensus that involves hundreds, perhaps thousands, of scientists... and none of them was asked if they agreed with anything in the report except for the one or two pages they worked on." Lindzen also draws a sharp distinction between the scientists' document and its politicized summary: "the document itself is informative; the summary is not."9
Originally posted by Waldy
reply to post by heliosprime
No, I am right, CO2 levels have not been this high for at least 500 million years. The effects of it, however, is debatable.
Originally posted by heliosprime
Originally posted by Waldy
Yeah, you can spin this like this but the reality is that it causes global warming that triggers the natural cooling system of the earth to go on overdrive resulting in dramatic cooling. Add the solar minimum to the equation and you get even more cooling.
It has also been debated that we delayed the coming ice age with co2 emissions.
Err talk about spin.........think I getting verigo from the spin on your post....
Originally posted by heliosprime
This data indicates that although the world has worked very hard to decrease CO2 emissions worldwide, in fact CO2 has increased. BUT, data indicates that sine 1998 world temperatures have DECREASED and are thought to be DOWN for the next 23 years.
I have posted a link to a scientific study that proofs the CO2 levels have not been as high as today for the past 500 million years. What have you done other than just claim the opposite without posting any source or evidence?
Originally posted by Waldy
Yeah, you can spin this like this but the reality is that it causes global warming that triggers the natural cooling system of the earth to go on overdrive resulting in dramatic cooling. Add the solar minimum to the equation and you get even more cooling.
It has also been debated that we delayed the coming ice age with co2 emissions.
Originally posted by melatonin
Originally posted by heliosprime
This data indicates that although the world has worked very hard to decrease CO2 emissions worldwide, in fact CO2 has increased. BUT, data indicates that sine 1998 world temperatures have DECREASED and are thought to be DOWN for the next 23 years.
Nope, now looks like they were up for the last 10 years (1999-2008)
Over the past year, anecdotal evidence for a cooling planet has exploded. China has its coldest winter in 100 years. Baghdad sees its first snow in all recorded history. North America has the most snowcover in 50 years, with places like Wisconsin the highest since record-keeping began. Record levels of Antarctic sea ice, record cold in Minnesota, Texas, Florida, Mexico, Australia, Iran, Greece, South Africa, Greenland, Argentina, Chile -- the list goes on and on.