Environuts vs Reality take II

I found this excellent ressource and I thought I’d share. The quotes below are an excerpt from the linked site, so all credit goes to the original author – I can only take credit for not buying into the CO2 hype really. The site is here CLICKY

Also pay special attention to the alternate and much more plausible explanation of the current global warming trend, as explained by Henrik Svensmark – referenced here CLICKY

So, greenhouse is all about carbon dioxide, right?

Wrong. The most important players on the greenhouse stage are water vapor and clouds. Carbon dioxide has been increased to about 0.038% of the atmosphere (possibly from about 0.028% pre-Industrial Revolution) while water in its various forms ranges from 0% to 4% of the atmosphere and its properties vary by what form it is in and even at what altitude it is found in the atmosphere.

In simple terms the bulk of Earth’s greenhouse effect is due to water vapor by virtue of its abundance. Water accounts for about 90% of the Earth’s greenhouse effect — perhaps 70% is due to water vapor and about 20% due to clouds (mostly water droplets), some estimates put water as high as 95% of Earth’s total tropospheric greenhouse effect (e.g., Freidenreich and Ramaswamy, “Solar Radiation Absorption by Carbon Dioxide, Overlap with Water, and a Parameterization for General Circulation Models,” Journal of Geophysical Research 98 (1993):7255-7264).

The remaining portion comes from carbon dioxide, nitrous oxide, methane, ozone and miscellaneous other “minor greenhouse gases.” As an example of the relative importance of water it should be noted that changes in the relative humidity on the order of 1.3-4% are equivalent to the effect of doubling CO2.

Second important snippet:

But we’re responsible for all the carbon dioxide greenhouse effect?

Gracious no! Humans can only claim responsibility, if that’s the word, for abut 3.4% of carbon dioxide emitted to the atmosphere annually, the rest of it is all natural (you can see the IPCC representation of the natural carbon cycle and human perturbation here or a simple schematic from Woods Hole here).

Half our estimated emissions fail to accumulate in the atmosphere, “disappearing” into sinks as yet undetermined. Humans’ total accumulated carbon contribution could account for perhaps a quarter of the total non-water greenhouse gases (that is, accounting for all the increase since the Industrial Revolution regardless of source and irrespective of whether warming from any cause might result in an increase in natural emission to atmosphere — we’re simply claiming the lot as anthropogenic or human-caused here).

Assuming that water vapor accounts for about 70% and clouds (mostly water droplets) accounts for another 20%, thus water in it’s various forms is 90% of the total greenhouse effect, leaving 10% for non-water greenhouse effect (we know we cited 95% above — see “important distinction“). Of this remaining 10%, mainly atmospheric carbon, humans might be responsible for 25% of the total accumulated atmospheric carbon, meaning 0.25 x 0.1 = 0.025 x 100 = 2.5% of the total greenhouse effect.

The end result is we’re about to spend a lot of time, energy and ressources on reducing CO2 emissions that in all likelyhood as a worst case scenario have a minimal effect overall.

One thought on “Environuts vs Reality take II

  1. Nikky

    Here is truth about global wainmrg:Global wainmrg is one-half of the climatic cycle of wainmrg and cooling.The earth’s mean temperature cycles around the freezing point of water.This is a completely natural phenomenon which has been going on since there has been water on this planet. It is driven by the sun.Our planet is currently emerging from a mini ice age’, so isbecoming warmer and may return to the point at which Greenland is again usable as farmland (as it has been in recorded history).As the polar ice caps decrease, the amount of fresh water mixing with oceanic water will slow and perhaps stop the thermohaline cycle (the oceanic heat conveyor’ which, among other things, keeps the U.S. east coast warm).When this cycle slows/stops, the planet will cool again and begin to enter another ice age. Thermohaline cycle:Warm water is less dense than cold water. One of the ocean currents runs North up the east coast of the U.S.When this warm ocean water reaches the arctic ocean, it is cooled which makes it become more dense. The now dense salt water drops to the sea floor and begins its return to thesouthern loop of its cycle.Fresh water from meltoff of the northern ice pack dilutes this sea water which makes it less dense.The diluted, less dense water drops to the sea floor more slowly which slows the entire cycle.If diluted enough, this circulation stops entirely.When the circulation stops, then the planet will begin to cool and enter an ice age which will stop the meltoff.As the salinity in the north Atlantic increases, the water will once again begin to sink to the sea floor and the cycle will restart and our planet will emerge from its ice age and enter another warm period.That is happening now. It will change.It’s been happening for millions of years.The worrisome and brutal predictions of drastic climate effects are based on computer models, NOT CLIMATE HISTORY. As you probably know, computer models are not the most reliable of sources, especially when used to predict’ chaotic systems such as weather.Global wainmrg/cooling, AKA climate change’:Humans did not cause it.Humans cannot stop it.

Leave a Reply

Your email address will not be published. Required fields are marked *