As they moved into unfamiliar territory, they faced extreme landscapes, hostile neighbors and poorly understood climate patterns.

That’s worked out well for them until now, but forests around the world are changing as a result of more volatile climate patterns.

Past that we have to rely on the distribution of sediments, and markers of past glaciers, which we can extrapolate out to roughly indicate climate patterns.

Key factors include climate patterns, airline schedules and hotel prices.

Change in climate patterns could result in relative drought in these areas.