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Increases in greenhouse gases
2016 , Report Content... methane concentration in 2015 was 1834 parts per billion (ppb), which is an increase of 154 per cent above the estimated pre-industrial level of 722 ppb ( Etheridge et al. 1998 , Hartmann et al. 2013 ). The global methane ...
Figure ANT6 Equivalent effective stratospheric chlorine for the Antarctic and Southern Hemisphere mid-latitudes derived from AGAGE global measurements of all major ozone-depleting substances and World Meteorological Organization 2014 scenarios
2016 Graph... depleting substances WMO 2014 scenarios (mid-latitudes) ppb AGAGE mid-latitude measures of major ozone depleting substances 1970 ...
Figure ATM2 Radiative forcing as a result of long-lived greenhouse gases measured by CSIRO in the Southern Hemisphere
2016 , Graph... data in Figure ATM1 and radiative efficiencies (W/m 2 /ppb) from Myhre et al. (2013) , Chapter 8. Montreal Protocol synthetic ...
Figure ATM25b Monthly mean concentration of tropospheric ozone at Cape Grim, 1982–2015
2016 , Graph... of tropospheric ozone at Cape Grim, 1982–2015 Ozone (ppb) 1/01/1976 1/02/1976 1/03/1976 1/04/1976 1/05/1976 1/06/1976 1/07/1976 ...
Understanding and research
2016 , Report Content... of tropospheric ozone at Cape Grim, 1982–2015 Ozone (ppb) 1/01/1976 1/02/1976 1/03/1976 1/04/1976 1/05/1976 1/06/1976 1/07/1976 ...
Box ATM5 Cape Grim: monitoring the health of the global atmosphere for 40 years
2016 , Case Study... of tropospheric ozone at Cape Grim, 1982–2015 Ozone (ppb) 1/01/1976 1/02/1976 1/03/1976 1/04/1976 1/05/1976 1/06/1976 1/07/1976 ...
The physical environment: The atmosphere—climate and weather patterns
2016 Report Content... depleting substances WMO 2014 scenarios (mid-latitudes) ppb AGAGE mid-latitude measures of major ozone depleting substances 1970 ...
2011 Report graph - Figure 3.8 Major greenhouse gas levels over the past 1000 years
2011 , Graph... gas levels over the past 1000 years
Figure 3.8 Figure 3.8 ppb = parts per billion; ppm = parts per million Source: MacFarling Meure et ...
Pressures affecting Australia's climate
2011 , At a glance... global average methane concentration in 2010 was 1796 ppb (parts per billion)—an increase of 157% above estimated pre-industrial levels of 700 ppb. CSIRO observations also show that global nitrous oxide levels in 2010 were ...
