WEATHER M EDIC INC J ACK W. KANACK Web site: www.weathermedic.com Email: info@weathermedic.com Phone: (716) 245-5755 PEACE CENTER RENEWABLE ENERGY TASK FORCE CHARLEY BOWM AN renewableenergy@wnypeace.org
Current greenhouse gas concentrations [5] Current greenhouse gas concentrations[5] Pre-1750 Recent Percentage Increased Absolute increase Gas tropospheric tropospheric increase radiative forcing since 1750 concentration [43] concentration [44] (W/ m 2 ) [45] since 1750 Carbon dioxide 280 ppm [46] 395.4 ppm [47] 115.4 ppm 41.2% 1.88 (CO2) 1893 ppb / [49] Methane 1193 ppb / 170.4% / 700 ppb [48] 0.49 1762 ppb [49] (CH4) 1062 ppb 151.7% 326 ppb / [49] Nitrous oxide 56 ppb / 20.7% / 270 ppb [45][50] 0.17 324 ppb [49] (N2O) 54 ppb 20.0% Tropospheric 237 ppb [43] 337 ppb [43] 0.4 [51 100 ppb 42% ozone (O3)
Atmospheric lifetime and GWP relative to CO Atmospheric lifetime and GWP relative to CO2 at different time horizon for various greenhouse gases. Global warming potential (GWP) for given time horizon Chemical Lifetime Gas name formula (years) 20-yr 100-yr 500-yr Carbon dioxide CO2 See above 1 1 1 M ethane CH4 12 72 25 7.6 Nitrous oxide N2O 114 289 298 153 CFC-12 CCl2F2 100 11 000 10 900 5 200 HCFC-22 CHClF2 12 5 160 1 810 549 Tetrafluoromethane CF4 50 000 5 210 7 390 11 200 Hexafluoroethane C2F6 10 000 8 630 12 200 18 200 Sulfur hexafluoride SF6 3 200 16 300 22 800 32 600 Nitrogen trifluoride NF3 740 12 300 17 200 20 700
Anomaly Records Rank January (out of 135 years) °C °F Y ear(s) °C °F Global 4 th Warmest 2007 +1.83 +3.29 Land +1.17 ± 0.18 +2.11 ± 0.32 132 nd Coolest 1893 -1.97 -3.55 7 th Warmest 1998 +0.56 +1.01 Ocean +0.46 ± 0.04 +0.83 ± 0.07 129 th Coolest 1904 -0.47 -0.85 4 th Warmest 2007 +0.85 +1.53 Land and +0.65 ± 0.08 +1.17 ± 0.14 Ocean 132 nd Coolest 1893 -0.73 -1.31
Northern Hemisphere 7 th Warmest 2007 +2.27 +4.09 +1.19 ± +2.14 ± Land 0.24 0.43 129 th Coolest 1893 -2.53 -4.55 5 th Warmest 1998 +0.54 +0.97 +0.48 ± +0.86 ± 0.08 0.14 Ocean 131 st Coolest 1904 -0.50 -0.90 Ties: 2004 4 th Warmest 2007 +1.19 +2.14 Land and +0.75 ± +1.35 ± Ocean 0.13 0.23 132 nd Coolest 1893 -1.26 -2.27
FEEDBACK CY CLES TRIGGERS WORRIES EARTH’S ALBEDO PERM AFROS T/ M ETHANE BREAK FROM THE SUN WATER VAPOR
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