Another downside to cooling.

[sigurdur]

www.forbes.com/sites/trevornace/2016/09/27/earths-oxygen-levels-declining-scientists/#1861ac6d359e

A new study shows Earth’s oxygen levels continue to decline, a phenomena that has puzzled scientists. The study, published in Science by Princeton University professor Daniel Stolper, presents data measured from small air bubbles trapped in ice on Greenland and Antarctica.

Air bubbles trapped within ice provides clues to the atmospheric composition at the time of “deposition” and can be analyzed for paleo-oxygen levels. The study finds that over the past 800,000 years the amount of oxygen found in the atmosphere has decreased by 0.7 percent and continues to decline.

[icefisher]

Sept 28, 2016 15:05:24 GMT sigurdur said:

www.forbes.com/sites/trevornace/2016/09/27/earths-oxygen-levels-declining-scientists/#1861ac6d359e

A new study shows Earth’s oxygen levels continue to decline, a phenomena that has puzzled scientists. The study, published in Science by Princeton University professor Daniel Stolper, presents data measured from small air bubbles trapped in ice on Greenland and Antarctica.

Air bubbles trapped within ice provides clues to the atmospheric composition at the time of “deposition” and can be analyzed for paleo-oxygen levels. The study finds that over the past 800,000 years the amount of oxygen found in the atmosphere has decreased by 0.7 percent and continues to decline.

Wow! Something else to worry about.

[nonentropic]

Fire fighting will be easier.

but seriously 800,000 years 0.7% and they can confirm that we have in the last 50 years not stopped this. Their errors must be in sanely low. six significant figures or better. I call BS.

[Ratty]

There is an obvious explanation; all that additional:

CO₂

[nautonnier]

I am not sure that I trust these bubbleometers 800,000 years is a lot of time for gases to diffuse out of the bubbles. Not a lot of course possibly as much as 0.7%