Origin of Life: no oxygen - AgnosticWeb.com

More information on the levels of oxygen. Life started without oxygen at 3.6 billion years ago. Oxygen levels rose at 2.3 billion years ago. Discussion of the interplay of variious factors:-http://www.nytimes.com/2013/10/03/science/earths-oxygen-a-mystery-easy-to-take-for-granted.html?ref=scienceandtechnology&_r=1&

Complete thread:

Origin of Life: information? David Turell 2012-12-14, 12:45 AM
- Origin of Life: zinc David Turell 2012-12-24, 03:52 PM
  - Origin of Life: chemical cycles David Turell 2012-12-27, 02:57 PM
    - Origin of Life: flying pigs David Turell 2012-12-27, 04:02 PM
      - Origin of Life: Defining life David Turell 2012-12-27, 05:48 PM
        
        Origin of Life: Very early David Turell 2013-01-04, 03:56 PM
        
        Origin of Life: fat globules David Turell 2013-01-11, 03:16 PM
        
        Origin of Life: enzymes David Turell 2013-01-31, 04:02 PM
        
        Origin of Life: phosphate David Turell 2013-04-05, 02:01 PM
        
        Origin of Life: salt & amino acids David Turell 2013-04-06, 02:56 PM
        
        Origin of Life: stromatolites David Turell 2013-05-30, 03:15 PM
        
        Origin of Life: phosphates David Turell 2013-06-04, 10:22 PM
        
        Origin of Life: comets David Turell 2013-06-06, 03:08 PM
        
        Origin of Life: borates David Turell 2013-06-11, 02:31 PM
        
        Origin of Life: HCN and uv light David Turell 2013-06-25, 03:02 PM
- Origin of Life: software David Turell 2013-04-21, 02:19 PM
  - Origin of Life: cells without walls David Turell 2013-07-04, 02:56 PM
    - Origin of Life: early land life David Turell 2013-07-23, 02:35 PM
      - Origin of Life: early land life Balance_Maintained 2013-07-23, 03:19 PM
        
        Origin of Life: early land life David Turell 2013-07-23, 05:16 PM
        
        Origin of Life: early land life Balance_Maintained 2013-07-27, 10:51 AM
        
        Origin of Life: early land life David Turell 2013-07-27, 01:47 PM
        
        Origin of Life: early land life Balance_Maintained 2013-07-27, 09:00 PM
        
        Origin of Life: early land life dhw 2013-07-28, 02:37 PM
        
        Origin of Life: early land life Balance_Maintained 2013-07-28, 08:37 PM
        
        Origin of Life: early land life dhw 2013-07-29, 02:09 PM
        
        Origin of Life: early land life Balance_Maintained 2013-07-30, 10:54 AM
        
        Origin of Life: early land life dhw 2013-07-30, 04:59 PM
        
        Origin of Life: early land life David Turell 2013-07-30, 05:44 PM
        
        Origin of Life: early land life Balance_Maintained 2013-08-03, 10:55 PM
        
        Origin of Life: early land life dhw 2013-08-04, 07:02 PM
        
        Origin of Life: early land life Balance_Maintained 2013-08-04, 09:53 PM
        
        Origin of Life: early land life dhw 2013-08-05, 10:25 AM
        
        Origin of Life: early land life Balance_Maintained 2013-08-07, 01:38 PM
        
        Origin of Life: early land life David Turell 2013-08-07, 02:27 PM
        
        Origin of Life: balance of nature David Turell 2013-08-07, 06:23 PM
        
        Origin of Life: early land life dhw 2013-08-08, 11:13 AM
        
        Origin of Life: early land life David Turell 2013-08-08, 02:26 PM
        
        Origin of Life: early land life dhw 2013-08-09, 08:06 AM
        
        Origin of Life: early land life David Turell 2013-08-09, 02:32 PM
        
        Origin of Life: early land life David Turell 2013-08-09, 02:53 PM
        
        Origin of Life: early land life dhw 2013-08-10, 07:46 AM
        
        Origin of Life: proof David Turell 2013-08-22, 02:07 PM
        
        Origin of Life: proof dhw 2013-08-23, 09:55 AM
        
        Origin of Life: from Mars? David Turell 2013-08-29, 08:04 PM
        
        Origin of Life: meteorite chemicals David Turell 2013-09-10, 05:35 PM
        
        Origin of Life: meteorite chemicals David Turell 2013-09-14, 02:58 PM
        
        Origin of Life: comets? David Turell 2013-09-16, 02:02 PM
        
        Origin of Life: whole cell David Turell 2013-09-19, 12:01 AM
        
        Origin of Life: whole cell David Turell 2013-09-21, 03:08 PM
        
        Origin of Life: whole cell dhw 2013-09-22, 06:07 PM
        
        Origin of Life: whole cell David Turell 2013-09-22, 08:32 PM
        
        Origin of Life: it needs solar system David Turell 2013-09-25, 02:05 PM
        
        Origin of Life: no oxygen David Turell 2013-09-26, 02:00 PM
        
        Origin of Life: no oxygen David Turell 2013-10-07, 02:27 PM
        
        Origin of Life: miracle? David Turell 2013-10-13, 02:35 PM
        
        Origin of Life: miracle? dhw 2013-10-14, 03:09 PM
        
        Origin of Life: miracle? David Turell 2013-10-14, 04:35 PM
        
        Origin of Life: miracle? David Turell 2013-10-23, 01:43 PM
        
        Origin of Life: man made pipedream David Turell 2013-10-24, 02:41 PM
        
        Origin of Life: man made pipedream David Turell 2013-11-06, 12:24 AM
        
        Origin of Life: earliest David Turell 2013-11-13, 12:49 AM
        
        Origin of Life: early minerals David Turell 2013-11-27, 03:27 PM
        
        Origin of Life: chemical problems David Turell 2013-12-16, 01:06 AM
        
        Origin of Life: Cold RNA world David Turell 2013-12-23, 04:04 PM
        
        Origin of Life: RNA world David Turell 2013-12-24, 05:56 PM
        
        Origin of Life: Extreme difficulties David Turell 2014-01-03, 02:36 AM
        
        Origin of Life: Extreme odds David Turell 2014-01-03, 05:40 AM
        
        Origin of Life: LUCA David Turell 2014-03-11, 03:04 PM
        
        Origin of Life: some current work David Turell 2014-03-11, 03:10 PM
        
        Origin of Life: LUCA dhw 2014-03-11, 08:20 PM
        
        Origin of Life: LUCA David Turell 2014-03-12, 01:12 AM
        
        Origin of Life: LUCA dhw 2014-03-13, 11:39 AM
        
        Origin of Life: LUCA David Turell 2014-03-13, 02:24 PM
        
        Origin of Life: LUCA David Turell 2014-03-18, 02:06 PM
        
        Origin of Life: Another dead end David Turell 2014-04-09, 03:18 PM
        
        Origin of Life: Another dead end romansh 2014-04-10, 02:21 AM
        
        Origin of Life: Another dead end David Turell 2014-04-10, 05:29 AM
        
        Origin of Life: how oxygen appeared David Turell 2014-09-05, 03:14 PM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-15, 02:44 PM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-16, 02:35 AM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-16, 05:18 AM
        
        Origin of Life: Organic chemists don't know how dhw 2014-10-16, 08:28 PM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-17, 01:21 AM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-17, 02:26 AM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-17, 05:04 AM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-17, 07:46 PM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-18, 12:19 AM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-18, 12:52 AM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-18, 04:05 AM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-18, 04:54 AM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-18, 10:45 AM
        
        Origin of Life: Organic chemists don't know how dhw 2014-10-17, 04:25 PM
        
        Origin of Life: Organic chemists don't know how David Turell 2014-10-17, 05:51 PM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-17, 08:06 PM
        
        Origin of Life: Organic chemists don't know how dhw 2014-10-18, 05:20 PM
        
        Origin of Life: Organic chemists don't know how Balance_Maintained 2014-10-18, 08:32 PM
        
        Origin of Life: Pie in the sky research David Turell 2014-10-30, 02:52 PM
        
        Origin of Life: Continental drift! David Turell 2014-11-09, 12:18 AM
        
        Origin of Life: foolishness David Turell 2014-11-24, 02:16 PM
        
        Origin of Life: new RNAzyme David Turell 2014-12-05, 08:32 PM
        
        Origin of Life: zapping by laser David Turell 2014-12-09, 12:08 AM
        
        Origin of Life: oil droplets David Turell 2014-12-09, 03:07 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-15, 03:21 PM
        
        Origin of Life: early atmosphere Balance_Maintained 2015-01-15, 04:14 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-15, 07:07 PM
        
        Origin of Life: early atmosphere Balance_Maintained 2015-01-16, 03:27 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-16, 06:18 PM
        
        Origin of Life: early atmosphere Balance_Maintained 2015-01-17, 02:17 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-17, 02:47 PM
        
        Origin of Life: early atmosphere Balance_Maintained 2015-01-17, 03:20 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-17, 09:30 PM
        
        Origin of Life: early atmosphere David Turell 2015-01-27, 05:38 PM
        
        Origin of Life: odds, chance vs. design David Turell 2015-02-06, 01:37 AM
        
        Origin of Life: how did plants get onto land David Turell 2015-12-20, 01:40 AM
        
        Origin of Life: early land life not long after the Cambrian David Turell 2018-04-30, 06:18 PM
        
        Origin of Life: early land life in algae fossil David Turell 2020-03-27, 12:33 AM
        
        Origin of Life: early land life in algae fossil dhw 2020-03-27, 12:11 PM
        
        Origin of Life: early land life in algae fossil David Turell 2020-03-27, 08:58 PM
        
        Origin of Life: early land life in algae fossil dhw 2020-03-28, 01:17 PM
        
        Origin of Life: early land life in algae fossil David Turell 2020-03-28, 08:15 PM
- Origin of Life: information? xeno6696 2013-12-16, 02:19 AM
  - Origin of Life: information? David Turell 2013-12-16, 05:30 AM