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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Tenchusatsu who wrote (1167704)	9/30/2019 8:18:50 PM
From: Wharf Rat	Read Replies (2) \| Respond to of 1576882

"As for whether scientific models these days are accurate to any degree, that's another can of worms." Climate model projections compared to observations Hansen et al (1988) Original discussion (2007), Last discussion (2018). Scenarios from Hansen et al. (1988). Observations are the GISTEMP LOTI annual figures. Trends from 1984: GISTEMP: 0.19ºC/dec, Scenarios A, B, C: 0.33, 0.28, 0.15ºC respectively (all 95% CI ~±0.03). Last updated: 7 Feb 2019. CMIP3 (circa 2004) Last discussion (2015). Model spread is the 95% envelope of global mean surface temperature anomalies from all individual CMIP3 simulations (using the SRES A1B projection post-2000). Observations are the standard quasi-global estimates of anomalies with no adjustment for spatial coverage or the use of SST instead of SAT over the open ocean. Last updated 7 Feb 2019. more realclimate.org