Figure SPM.3. Figure TS.6 FAQ 1.3, Figure 1 FAQ 1.1, Figure 1.

Présentation au sujet: "Figure SPM.3. Figure TS.6 FAQ 1.3, Figure 1 FAQ 1.1, Figure 1."— Transcription de la présentation:

1 Figure SPM.3

2 Figure TS.6

3 FAQ 1.3, Figure 1

4 FAQ 1.1, Figure 1

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7 Figure 2.3

8 Figure TS.5

9 Figure 3.13

10 Figure 1.1

11 Better and longer satellite data about the Sun Improved assessment: a) no observed trend in solar irradiance since 1978 using high quality inter-calibrated data; b) spectral information c) solar magnetic flux model rather than proxy data; d) re-evaluation of variations in Sun-like stars. No observed trend in this data. Solar forcing much less than greenhouse gases.

12 Forçage glaciaire et réponses Last Ice age Last interglacial

13 Explosive Volcanic Eruptions: Proof of Fast-Response Climate Change Due to Forcing Changing forcing changes the temperature (and water vapor, etc.). If volcanoes can cool, then GHG must warm….

14 Figure TS.22

15 Figure TS.18

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17 Montée du niveau de la mer 1993-2003 Dilatation thermique Glaciers & calottes glaciaires Groenland Antarctique Total Observé Observé-Total 1,6 +/-0,5 (mm/an) 0,77 +/-0,22 (mm/an) 0,21 +/-0,07 (mm/an) 0,21 +/-0,35 (mm/an) 2,8 +/-0,7 (mm/an) 3,1 +/-0.7 (mm/an) 0,3 +/-1,0 (mm/an)

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19 10 milliards de tonnes par an en « équivalent pétrole » Pétrole Gaz Charbon Bois,… Nucléaire Hydro Renouv 35% 21% 23,5% 6,8%

20 Les concentrations de CO 2 attendues au cours du XXIème siècle sont deux à quatre fois celles de lère préindustrielle

21 Figure SPM.5

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24 Figure 11.12

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29 FAQ 5.1, Figure 1

30 Deltas and megadeltas: hotspots for vulnerability Nearly 300 million people inhabit a sample of 40 deltas globally, including all the large megadeltas. Average population density is 500 people/km2 with the largest population in the Ganges-Brahmaputra delta, and the highest density in the Nile delta. Many of these deltas and megadeltas are associated with significant and expanding urban areas

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32 La concentration en CO 2, la température et le niveau de la mer continuent à croître longtemps après que les émissions aient été réduites

33 La stabilisation de la concentration en gaz carbonique exige une réduction importante des émissions

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