Brazil: Home to the Amazon River and Rainforest

The South American Giant Holds Two Global #1s (and a #2)

Brazil is the country that hosts both the world's largest tropical rainforest and the world's second-longest river.

The Amazon Rainforest

• Area: ~5.5M km² (60% in Brazil; also Peru, Colombia, Bolivia, Ecuador, Venezuela, Guyana, Suriname, French Guiana).
• Biodiversity: 10% of known species. 40,000 plants, 3,000 fish, 1,300 birds, 430 mammals, 2.5M insects.
• Carbon: 150–200 Gt stored. "Lungs" metaphor (net O₂ ~0, but critical climate regulator).
• Indigenous Peoples: 300+ groups, many uncontacted. Territories = best protection.

The Amazon River

• Length: ~6,400 km (3,977 mi) – 2nd longest (Nile ~6,650 km). *Debate exists on exact length/sources.
• Discharge: 209,000 m³/s – #1 by far (≈ next 7 rivers combined).
• Basin: 7.05M km² (40% South America).
• Mouth: Wide estuary (100–240 km) → Atlantic. Pororoca tidal bore.

Why Brazil?

• Geology: Stable craton (Guiana + Brazilian Shields) → ancient, nutrient-poor soils → rainforest efficiency.
• Climate: Equatorial + trade winds + Andes barrier → moisture recycling (flying rivers).
• Scale: Continental size captures entire system.

Threats

Deforestation (cattle, soy, logging, mining, fires), dams, mercury, climate change (dieback risk). Brazil's policies determine planetary outcome.