In many ways, the game plays like a thoughtful cosmetic update. You select a civilization and a leader, with options that aren’t only the obvious ones (all hail Empress Harriet Tubman!). The world map ...

Climatologists analyze various natural climate data repositories to understand Earth’s past. Glaciers, sediments, and pollen convene to form a kind of “nature’s archive” from which natural scientists ...

Global warming is producing a rapid loss of plant species—according to estimates, roughly 600 plant species have died out ...