These swaths of dead, white, trees are created when salty water moves into forested areas, first slowing, and eventually halting, the growth of new trees.
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Because all the marshes that ever existed have been the same as they were 4 billion years ago when the earth was created, right? And only now, after 4 billion years, after the Cretaceous mass extinction 65 million years ago, which wiped out the dinosaurs; only now we can alter the earth’s climate with CO2. A gas composing .04% of the earth’s atmosphere.
400 and some parts per MILLION in our atmosphere, so your .04 is still too high!
CO2 is a trace gas, a poor conductor of heat and is vital to all life on earth.
Just imagine how horrible it would be if we still rode horseback and each of us had several head of cattle, over the last century.