Estimating Green Space Percentage

We know:

• Average mature tree canopy = 20–25 m² per tree (moderate urban trees).

City	Green Cover (%)
Delhi	~23%
Bangalore	~33% (was ~45% in 1980s)
Chandigarh	~43%
Ahmedabad	~25% (estimated)

• U.S. Forest Service: Estimates a typical mature tree absorbs 22 kg CO₂/year

• IPCC & UNEP: Use 15–25 kg CO₂/year for standard carbon offset calculations

• India-specific research: Varies depending on tree species and climate, but ranges between 15–30 kg/year

• 22 kg CO₂/year per tree is a globally accepted average for young urban trees.

Does trees really eats the carbon dioxide?

Yes — trees really do “eat” carbon dioxide (CO₂) — but not in the way humans eat food. Here’s a clear breakdown:

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🌳 ✅ What Actually Happens:

Trees absorb carbon dioxide (CO₂) from the atmosphere during a process called photosynthesis.

📘 In simple terms:

Trees “breathe in” CO₂ and “breathe out” oxygen (O₂) while using the carbon to grow.

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🔬 The Science:

Photosynthesis formula:

• CO₂ (carbon dioxide) from the air

• H₂O (water) from the roots

• Sunlight from the sun

• 👉 Combined to form glucose (tree food) + oxygen (released)

➡️ The carbon from CO₂ becomes part of the tree — stored in:

• Wood (trunk, branches)

• Leaves

• Roots

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📦 That’s Why Trees are Called Carbon Sinks:

• A mature tree can absorb about 20–25 kg of CO₂ per year

• Over decades, that adds up to hundreds of kilograms of stored carbon

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🔥 And When Trees are Cut or Burned?

• That stored carbon is released back into the air as CO₂

• That’s why deforestation worsens climate change

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✅ Final Answer:

Yes, trees really do absorb and store carbon dioxide from the air. That’s one of the most powerful ways nature fights climate change naturally.

how many trees are needed to offset the CO₂ emissions of each vehicle?

let’s have a look on emissions of particular vehicle’s:

Vehicle Type	Emission per Year (avg)
🚗 Car (Petrol)	2,300 kg CO₂
🛵 2-Wheeler	500 kg CO₂
🚙 SUV/Diesel Car	2,700 kg CO₂
🚌 Auto Rickshaw	1,200 kg CO₂
🚐 Commercial Van	3,000 kg CO₂

Now observe how much tree requires to offset the co2 released.

Vehicle Type	CO₂ Emitted per Year	CO₂ Absorbed per Tree/year	🌳 Trees Required
🛵 Bike/Scooter	500 kg	22 kg	~23 trees
🚗 Car (Petrol)	2,300 kg	22 kg	~105 trees
🚌 Auto Rickshaw	1,200 kg	22 kg	~55 trees

So, there is a huge gap between the emissions of a vehicles and the number trees.

“A single vehicle emits hundreds of kilograms of CO₂ every year, while one tree absorbs only about 22 kg — the gap is massive. That’s why every tree planted counts.” planting even one tree is a step forward. “The math shows the gap that Our emissions grow faster than our trees.

Solution: Just check how many vehicles do you have or in your house. and calculate the emissions coming out from your vehciles per year. now you will understand the how much trees are needed. Plant trees as much as possible.

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