Beam me to Planet Gore !
Popsicle planet ping
Money sentence.
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How arrogant “we” are to assume today’s climate is the norm for Erf.
Look at the situation this way - with so much of the planet covered with an albedo of snow and ice, there was precious little open land available for the growth of plant material, and most of that of the variety of what would grow in a sub-Arctic fen. Tamarack, ferns, swamp alders, and bulrushes.
Therefore, with carbon dioxide not being used so much by growing plant life, and the average ocean temperture being lower, perhaps by some several degrees worldwide, a greater proportion of the carbon dioxide would be absorbed by the cooler water. This, in turn, would make the oceanic plant life much richer and more varied, enriching the oxygenation of the water, allowing species with a higher biological oxygen demand to grow and multiply, creating the ancestors to present-day salmon, trout and cod, cold-water species which go teeming in the sea.
This is one of the reasons why the biological food chain is so much more fecund in northern latitudes than in tropical regions. Undersea life in warm tropical waters is much more varied, but it is actually a much more spare existence than that of cold-water regions. The warm waters have less dissolved oxygen and carbon dioxide than waters at frigid or near freezing conditions.
YEC INTREP