Green cover cools - and cleans - the air.

Protect the parks, avenue trees, and green patches near you, and back local greening - shade cools the street and leaves catch some of the dust we breathe.

A park is the cheapest air-conditioner a city ever bought.

Here's the science

What happensMore tree canopy and green cover across a neighbourhood
HowShade and evaporation lower surface temperatures and how hot it actually feels to stand outside
SoLess heat stress, and more bearable conditions in green areas than in bare, built-up ones

Suggestive - measured in the real worldGLOBALmeasured abroad - shown for the mechanism, not the Indian number

“Green cover reduces 'felt' (physiologically equivalent) temperatures by 5–14 percent”

A figure RMI cites from external nature-based-solutions research; it varies by site, so it is kept out of the claim.

Source: Tackling Extreme Heat through Urban Forestry in Delhi - Rocky Mountain Institute (RMI)(checked 2026-07-18)

What happensFine particles (PM2.5) passing over and settling on leaves
HowParticles deposit on and cling to leaf and stem surfaces, and leaves take in some gases - briefly removing them from the air people breathe
SoA modest local dip in particles near tree cover - a buffer, never a substitute for cutting pollution at its source

How it works - the size isn't measured hereUSmeasured abroad - shown for the mechanism, not the Indian number

“Fine particulate matter is deposited on tree surfaces clinging to leaves and stems.”

Modelled for U.S. parks; capture is partial and temporary - particles can wash off - so trees complement, not replace, cutting pollution at source.

Source: Air Pollution Removal by Urban Forests - U.S. National Park Service(checked 2026-07-18)

And when we do it

Streets with canopy and parks feel cooler in summer and hold a little less dust in the air, easing the load on the people most exposed to it.

You couldn't have known. Now you do.