Cult of Global Warming Is Losing Influence

HEARTLESS wrote: We are absolutely experiencing climate change and it is in the form of global warming. But many recognize the politics of AGW and though we contribute to this warming, we aren't the cause and can not effect change in it. Whether the change is a result of astrological cycle, sun activity or some other cause is still to be proven. Some believe carbon dioxide increases follow global warming, not precede and is the cause of it. If the earth hasn't previously experienced global warming, how did ocean fossils come to Colorado? Pole shifts, tectonic plate movement alone probably can't explain it.

Conservation Voice wrote: It was global warming that helped the Vikings settle in Greenland. When they landed, it wasn't all ice. They established settlements that sustained themselves from fishing and raising animals. Global cooling happened after that window and made the shoreline no longer inhabitable.

It's cyclical.

Science Chic wrote: http://www.realclimate.org/index.php/ar ... p-and-co2/
The lag between temperature and CO2.

The Viking wrote:

Conservation Voice wrote: It was global warming that helped the Vikings settle in Greenland. When they landed, it wasn't all ice. They established settlements that sustained themselves from fishing and raising animals. Global cooling happened after that window and made the shoreline no longer inhabitable.

It's cyclical.

?????????????? Who is this?? Nice post!

Fossil fuels are richer in C12 than the atmosphere, so too is plant life on Earth, and there isn’t a lot of difference (just 2.6%) in the ratios of C13 to C12 in plants versus fossil fuels. (Fossil fuels are, after all, made in theory from plants, so it’s not surprising that it’s hard to tell their “signatures” apart). So if the C13 to C12 ratio is falling (as more C12 rich carbon is put into the air by burning fossil fuels) then we can’t know if it’s due to man-made CO2 or natural CO2 from plants.
Essentially we can measure man-made emissions reasonably well, but we can’t measure the natural emissions and sequestrations of CO2 at all precisely — the error bars are huge. Humans emits 5Gt or so per annum, but the oceans emit about 90Gt and the land-plants about 60Gt, for a total of maybe 150Gt. Many scientists have assumed that the net flows of carbon to and from natural sinks and sources of CO2 cancel each other out, but there is no real data to confirm this and it’s just a convenient assumption.

In the past two decades or so, this discussion has focused on the role of water vapor as a positive feedback for the radiative forcing supposedly caused by increasing CO2 in the atmosphere. A key assumption in this argument is that the relative humidity in the atmosphere will remain constant as the atmosphere heats or cools [1, 2]. In the case of atmospheric heating, this means that the specific humidity (g water vapor/kg air) or mixing ratio (g water vapor/kg dry air) will increase as the surface/atmosphere warms. This is based on the Clausius- Clapeyron equation which defines the increase in water evaporation as surface temperature increases. This is one of the algorithms that is included in all Global Climate Models (GCM) currently in use.

Unfortunately the actual observational data contradict this core rational of AGW. While specific humidity levels in the lower troposphere do increase with increasing surface temperature, the specific humidity levels in the mid to upper troposphere have shown a decreasing trend over the past few decades even though surface temperatures (and tropospheric temperatures) are thought to be increasing.

Please remain calm: The Earth will heal itself -- Climate is beyond our power to control...Earth doesn't care about governments or their legislation. You can't find much actual global warming in present-day weather observations. Climate change is a matter of geologic time, something that the earth routinely does on its own without asking anyone's permission or explaining itself

Rockdoc Franz wrote: I suppose Dr. Laughlin pretty much sums up my perspective as well.

Please remain calm: The Earth will heal itself -- Climate is beyond our power to control...Earth doesn't care about governments or their legislation. You can't find much actual global warming in present-day weather observations. Climate change is a matter of geologic time, something that the earth routinely does on its own without asking anyone's permission or explaining itself

-- Nobel Prize-Winning Stanford University Physicist Dr. Robert B. Laughlin, who won the Nobel Prize for physics in 1998, and was formerly a research scientist at Lawrence Livermore National Laboratory.

SS109 wrote:

Rockdoc Franz wrote: I suppose Dr. Laughlin pretty much sums up my perspective as well.

Please remain calm: The Earth will heal itself -- Climate is beyond our power to control...Earth doesn't care about governments or their legislation. You can't find much actual global warming in present-day weather observations. Climate change is a matter of geologic time, something that the earth routinely does on its own without asking anyone's permission or explaining itself

-- Nobel Prize-Winning Stanford University Physicist Dr. Robert B. Laughlin, who won the Nobel Prize for physics in 1998, and was formerly a research scientist at Lawrence Livermore National Laboratory.

Stop that! Climate change isn't to be denied. You aren't allowed to introduce contrary facts into the AGW gospel. Man is all powerful and can control the climate easily, they just have to want to change it.