rationalskepticism.org

harleyborgais wrote:Apparently I have given the impression that Tsunamis caused by the Chicxulub impact went into orbit, but that is obviously silly.

The portion of water and minerals (sediment) that formed the tsunami is clearly a different portion from the ejecta that attained orbit, and any material that may have actually achieved escape velocity.

Water would have reformed once the material started cooling down (especially above 28 miles high, and more so above 53 miles, then into low orbit of 100 miles high, which most of the ejecta could have reached -references posted above-today).

The time it takes those hydrogen and oxygen atoms (or frozen snow-like molecules) to come down is a long time (see noctilucent clouds).

Plants dont really need or even use the higher UV light which is what the water block out. Those energies cause free radicals (ions-breaking molecules) which decrease life spans (learn about telemerase enzymes for more).

So what challenges have I still not met on this theory?

Thermal decomposition, also called thermolysis, is defined as a chemical reaction whereby a chemical substance breaks up into at least two chemical substances when heated. At elevated temperatures water molecules split into their atomic components hydrogen and oxygen. For example at 2200 °C about three percent of all H2O molecules are dissociated into various combinations of hydrogen and oxygen atoms, mostly H, H2, O, O2, and OH. Other reaction products like H2O2 or HO2 remain minor. At the very high temperature of 3000 °C more than half of the water molecules are decomposed, but at ambient temperatures only one molecule in 100 trillion dissociates by the effect of heat. However, catalysts can accelerate the dissociation of the water molecules at lower temperatures.

This solar radiation flux FS is intercepted by the Earth over a disk of cross-sectional area pRE2 representing the shadow area of the Earth ( Figure 7-9 ). A fraction A of the intercepted radiation is reflected back to space by clouds, snow, ice...; A is called the planetary albedo. Satellite observations indicate A = 0.28 for the Earth. Thus the solar radiation absorbed by the Earth per unit time is given by FSpRE2(1-A). The mean solar radiation flux absorbed per unit area of the Earth's surface is FSpRE2(1-A)/4pRE2 = FS(1-A)/4.