The future is likely subject to a huge addition in greenhouse forcing, whereas the past was in
a relatively stable configuration.
Not exact matches
That may not seem surprising, but the team did note one shocker: Craters left by high - speed drops started out with
relatively steep sides but within seconds they avalanched to form slopes with a more
stable configuration — a previously unstudied process that widened the crater and made it shallower (image above, where depth is exaggerated by a factor of three).
The supposed
stable configuration of geography, with
relatively predictable climate patterns, coastlines and icepacks in familiar locations, and clear demarcations of territorial control on land are increasingly dubious assumptions as weather patterns change, sea levels rise and ice packs disintegrate while technological innovations, communications and global markets cause rapid fluctuations in the price in food and other essentials across boundaries.
E.g., «The threshold separating
stable and unstable climate regimes represents a
relatively small departure from the modern ice sheet
configurations,» according to McManus et al. (1999), p. 1.