re: #176 lostlakehiker

Some of the talking points circulating among AGW activists run ahead of the evidence. Just for example, the claim that atmospheric oxygen levels are dropping. It’s quite true. BUT—-the drop is tiny. It’s diagnostic but is not in and of itself dangerous.

You have completely missed the point. If you look at the Keeling curves you see a rise in CO2 coupled by a decline in O2.

That is important because when you burn carbon compounds you use oxygen to do it. If you look at the ratios of decline in O2 with the rise in CO2, you see direct evidence that the carbon concentrations are coming from burning.

When you look at the burning by-products and radio isotopes, you find that what is being burnt is very old carbon compounds - i.e. fossil fuels.

This is direct evidence of man caused AGW. For you to dismiss that is very sloppy on your part.