The Amazon, at a glance
The largest tropical rainforest, the largest drainage basin, and a tenth of all known species
~6.7 million km²
The Amazon rainforest’s area, roughly twice the size of India.
9 countries
Spanned by the forest, with Brazil holding the largest share.
~219,000 m³/s
The Amazon River’s discharge, more than the next 7 rivers combined.
≥10%
Share of all known species on Earth found in the Amazon.
How Big Is the Amazon, and Who Lives There?
How large is the Amazon, and which countries share it?
- The Amazon rainforest covers about 6.7 million square kilometres, roughly twice the size of India.
- The Amazon basin lies in the equatorial region, roughly between 10°N and 10°S, and has a hot and wet climate all year. The dense leaf-and-branch roof keeps sunlight from reaching the dark, damp forest floor.
- It spans nine countries and territories: Brazil, Peru, Colombia, Bolivia, Ecuador, Venezuela, Guyana, Suriname, and French Guiana. Brazil holds the largest share of the forest by far.
- It is the world’s largest tropical rainforest by area, and the single largest reserve of tropical biodiversity on Earth.
- People of the rainforest grow most food in small clearings using slash-and-burn agriculture. Manioc (cassava) is the staple food, and cash crops include coffee, maize, and cocoa.
- Some rainforest families live in beehive-shaped thatched huts, while others share large communal houses called Malocas. The 1970 Trans-Amazon Highway opened the forest’s interior to outside access for the first time.
Q1. True or False: The Amazon rainforest covers an area roughly twice the size of India.
Q2. True or False: Peru holds the largest share of the Amazon rainforest.
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How Does the Amazon River Compare to the World’s Other Rivers?
Is the Amazon really longer than the Nile?
- The Amazon River runs at least 6,400 kilometres, traditionally counted as the world’s second-longest river after the Nile.
- That ranking isn’t fully settled. A 2007 Brazilian study, using a different source point and river mouth, argued the Amazon is actually longer. The claim remains disputed, not widely accepted.
- The Amazon holds the world’s largest drainage basin, around 7.05 million square kilometres.
- Its discharge, about 219,000 cubic metres per second, is greater than the next seven largest rivers on Earth combined.
- The river system has roughly 1,100 tributaries, 17 of them longer than 1,500 kilometres.
Q3. True or False: The Amazon River’s discharge exceeds the combined discharge of the next seven largest rivers on Earth.
Q4. True or False: Geographers have reached a settled consensus that the Amazon River is longer than the Nile.
Think it through, before reading on. A mature rainforest’s own animals, microbes, and decomposition consume roughly as much oxygen as its plants produce. So why does the Amazon still matter so much for the planet’s climate?
Show the explanation
Calling it “the lungs of the Earth” overstates its net oxygen contribution, but understates its real role: through transpiration and photosynthesis, its trees regulate rainfall patterns well beyond South America, and the forest stores an estimated 150 to 200 billion tonnes of carbon. Losing it would matter far more for climate and rainfall than for oxygen supply.
Remember the trap. The Amazon’s tree diversity claim is about a single hectare in the Ecuadorian Amazon holding more tree species than all of North America, not the entire Amazon basin outnumbering North America’s total tree count.
Is Amazon Deforestation Actually Improving?
Why don’t falling deforestation numbers tell the whole story?
- Amazon deforestation fell 68% in 2025, according to the Amazon Regional Observatory, its sharpest annual drop in years.
- In the first half of 2026, deforestation fell a further 38% compared to the same period the year before, reaching its lowest level in about a decade.
- That trend isn’t the whole picture. Over the same period, the number of wildfires in the region rose by more than 30%.
- Less land is being actively cleared, but drier conditions are letting more of the standing forest burn instead. Reading only the deforestation numbers would miss half of what’s actually happening on the ground.
Q5. True or False: Falling deforestation and falling wildfires moved together in the Amazon through early 2026.
Q6. True or False: Amazon wildfires rose by more than 30% even as deforestation fell sharply.
Quick Q&A
How big is the Amazon rainforest compared to India?
About 6.7 million square kilometres, roughly twice the size of India.
Is the Amazon River confirmed to be longer than the Nile?
No. A 2007 study argued it, using a disputed source and mouth point, but the claim is not widely accepted.
Why is “lungs of the Earth” a misleading description of the Amazon?
A mature rainforest’s own animals, microbes, and decomposition consume roughly as much oxygen as its plants produce.
Has Amazon deforestation actually improved recently?
Deforestation has fallen sharply since 2025, but wildfires have risen over 30% in the same period.
- UPSC CSP 2021 — A biome-description question pointed to tropical rain forest: fast leaf-litter decomposition, near-bare soil, and vegetation reaching the canopy via climbers and epiphytes, classic traits seen across the Amazon and other rain forests worldwide. View this question on the full 2021 paper →
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