|360 degrees of the Milky Way (Wikipedia.com)|
Though I was familiar with the process of gathering past climate data from ice cores and tree rings, I was suprised to find that such data has also been gathered from coral reefs and lake sediments. I was also surprised to find that some of that data indicated past climatic changes more dramatic than those predicted by the present trend of global warming that took place in as little as one to three years! The implications of the impact that would have on modern societies that are much less flexible than ancient hunter-gatherer societes are alarming. Though the science behind the movie "The Day After Tomorrow" may be a bit questionable, the idea behind such a rapid climate change is becoming less far-fetched, in light of such evidence.
|Glacier Bay to Hoonah, Ak - 91 miles (Google Earth image)|
|Tundra polygons, flight from Barrow to Atqasuk (photo: D. Armstrong)|