Notes

Includes index Earth past. The beginning of our Earth -- Dinosaurs in a greenhouse world -- The last great ice age -- Earth's changing climate. Earth present. The many environments and climates of our planet -- Earth's atmoshere -- Tropical rainforests -- Forests where trees drop leaves -- The great pine forests -- Grasslands -- Deserts hot or cold -- The tundra stark and frozen -- Polar regions -- Rivers and lakes -- Open ocean -- Coral reefs -- The abysmal depths -- Cities. Earth future? Life in 2080: one prediction -- Life in 2080: another prediction. What we can do