Country comparison
Bangladesh vs Colombia
Averaged across every city Airleaf has measured in each country — 46 in Bangladesh and 46 in Colombia — each read the same way: Sentinel-2 imagery at 10 m detail over a 2 km radius, and the live US EPA air quality index.
Bangladesh averages more tree cover — 54.0% against 33.0%.
Colombia averages cleaner air — AQI 33 against 100.
- Tree cover gap
- 21.1 points
- Bangladesh is ahead.
- Air quality gap
- 67 AQI
- Colombia is cleaner.
- Cities behind it
- 46 vs 46
- How much each average rests on.
46 cities measured
46 cities measured
Average tree cover
Mean across measured cities, each over the same 2 km radius.
54.0%
33.0%
Average air quality index
US EPA index. Lower is better.
100
33
Cities measured
How much each average rests on.
46
46
Trees still needed
Summed across measured cities, to reach their canopy targets. Fewer is better.
292K
866K
Behind the averages
The extremes in each country
An average says nothing about how far apart the best and worst places are. These are the measured cities at each end.
Bangladesh
- Greenest measured city
- Mohammadpur95.5% tree cover
- Worst air right now
- TungiAQI 179
Reading these numbers
What a country average is, and is not
It is a mean of cities
Not a national statistic. Each figure is the average across the cities Airleaf has measured in that country — 46 in Bangladesh and 46 in Colombia — each read over the same 2 km radius. Rural land, forest and everywhere unmeasured are not in it, so this compares urban areas rather than territories.
Coverage shapes the number
A country measured mostly in its capital reads differently from one measured across dozens of towns. These two rest on the same number of cities, so they are unusually like for like. Both firm up as coverage grows.
Frequently asked
Bangladesh and Colombia, answered
Which country has more tree cover, Bangladesh or Colombia?
Bangladesh, averaging 54.0% across its measured cities against 33.0% — a gap of 21.1 percentage points.
Which has cleaner air, Bangladesh or Colombia?
Colombia, averaging AQI 33 against 100 on the US EPA index. These are live readings averaged across cities, so the gap moves with the weather.
How many cities is each figure based on?
46 measured cities in Bangladesh and 46 in Colombia. Every one was read the same way, so the two averages are directly comparable — but a country with more measured cities has the more settled figure.
Is this the whole country?
No. It is the cities Airleaf has measured, each over a 2 km radius from its centre. Forest, farmland and unmeasured towns are not included, so treat this as a comparison of urban tree cover and urban air rather than of national land cover.
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