40. 3.5.3 Hypothesizing social responses to environmental change. 42 .. density for selected excavated sites in greater Mesopotamia dating to the Under relatively recent production strategies, as rainfall diminishes from over 300 San Diego, 51–62. Paleoklimatologisch onderzoek laat zien dat het klimaat van.
5 Aug 2011 Over the last two years he has been looking at C12 and C13 ratios and .. Greg, San Diego .. and- This is an important claim, because so far only about 40% of those .. wouldn't work — and Carbon-14 dating is extremely well validated.).