The Astonishing Diversity of Earth’s Natural Environments

Terrestrial Ecosystems

• Forests – rainforests, temperate deciduous, boreal coniferous.
• Grasslands – savannas, prairies, steppes.
• Deserts – Sahara, Atacama.
• Tundra – Arctic/Antarctic.

Aquatic Ecosystems

• Oceans – 70 % of surface, plankton to whales, coral reefs.
• Freshwater – lakes, rivers, wetlands.
• Estuaries – mixed salinity zones.

Climate Zones

• Tropical – warm, wet, rainforests, reefs.
• Temperate – distinct seasons, forests, grasslands.
• Polar – frigid, tundra.

Mountainous & Island Environments

Altitudinal gradients create diverse habitats; islands foster unique endemic species.

This overview highlights the planet’s incredible ecological variety, essential for conservation and sustainable management.