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Comment For comparison (Score -1) 39

For comparison, fluvial landforms of the Atacama have been exposed for about ~23 million years. Channels on Mars have been exposed for 3.5 billion, a huge difference (150x by my count). Even a weak erosive force can accomplish a lot in that time. In that time wind erosion has almost entirely excavated Gale Crater to a depth of more than 5km, leaving Mount Sharp behind at a similar height.

Comment Glacial ice does not fill lava tubes (Score -1) 37

In addition, those western flanks show solid evidence of past glaciers

I know of no instance on earth where glacial ice fills lava tubes. Lava tubes are fragile. Glaciers are very destructive. What plausible process exists where ice will non-destructively fill lava tubes? Earth has thousands of volcanoes and lots of glaciation. Mars has neither. This is a ridiculous statement even for slashdot. The Indian Mars images are impressive, for 1970.

Comment Today the EPA calls CO2 a pollutant (Score -1) 517

Lead as a pollutant? Maybe. But that was yesterday's EPA. Today's calls CO2 one. I call EPA unrestrained, unscientific extremists. The fusion of climate science with leftist ideology is a great tragedy of the last 30 years. The end of life on earth will come when tectonics have ceased, volcanism slows to nothing, and CO2 is gradually bound to carbonates in the oceans. Photosynthesis becomes impossible, severing the food chain. About 10^9 years. Enjoy CO2 while we have it.

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