Plant Power!
Soil Impact
City Challenges
Green Infrastructure
Cost Saving
100

The amount of tons of air pollution urban forests remove annually 

What is 1.1 million tonnes? 
100

Compacted urban soils often worsen flooding because they reduce this key soil property that controls how easily water and air move through the ground

What is soil porosity? 

OR

What is Infiltration/Percolation?

100

The most prominent airborne pollutant in cities (HINT: comes from industry and vehicle emissions)

What is PM2.5?

100

Intentional overlap between natural and semi-natural elements within the Urban Built Environment 

What is Green Infrastructure? 

100

The range of savings associated with installing a bioswale over gray stormwater infrastructure

What is 50-70%? 
200

The amount of heavy metals a bioswale might be able to reduce in urban stormwater 

What is 50-80% reduction in heavy metal concentration? 
200

Urban soils can help reduce city temperatures by storing water that later cools the air through this process where water changes from liquid to vapor.

What is evaporation?

OR

What is evapotranspiration? 

200

One of the most common contaminants in urban stormwater runoff

What is heavy metals? 

OR

What is petroleum hydrocarbons?

200
Green Infrastructure has tangible impacts across three intersectional pillars of sustainbility

What are Social, Economic, and Environmental sustainability? 

200

One of the benefits of installing a Constructed Wetland (CW) over mechanical water remediation.

What is lifespan? 

What is energy efficiency?

What is operational costs? 

300
The amount of oxygen that trees in US Urban Forests produce annually 
61 million metric tonnes 
300

Urban soil microbial communities help break down hydrocarbons, pesticides, and other contaminants through this broad biological process that converts pollutants into less harmful substances

What is Biodegradation?

OR

What is Bioremediation? 

300

The most common element contaminating urban soils

What is Lead? 

300

This GI Feature is used as a robust stormwater management technique, taking advantage of root systems to mitigate runoff

What is a bioswale/rain garden? 

300
The improvement in energy usage conferred by the installation of a green roof

What is a 75% reduction in heating/cooling costs? 

400

The amount of carbon emissions urban plants can sequester on a daily basis

What is 30-60% of daily emissions? 

400

Cities often add compost or organic material to urban soils because it improves soil structure and helps soils hold more of this resource that supports plants and reduces irrigation costs

What is soil moisture? 

400
A pathogen that proliferates in standing water, raising health concerns around industries that need massive amounts of aqueous coolant

What is legionella? 

400

This GI feature not only manages stormwater, but has tangible impacts on urban heat islands and air quality

What are Green Roofs?


400

Atlanta's per-capita ROI from investments in the urban forest

What is 5-15 dollars per capita?

500
The reduction of cardiovascular death associated with increased urban plant diversity
What is a 13% reduction of heart-disease risk? 
500

Healthy urban soils can extend the lifespan of roads, sidewalks, and underground utilities by improving drainage and reducing this ground movement that can crack pavement and damage infrastructure

What is soil erosion? 

500
The kind of pollution most threatening to public health in the City of Atlanta

What is air pollution? (PM2.5 & Ozone) 

500

This GI element is a powerful bioremediational tool for removing waste in agricultural and urban watersheds

What is a Constructed Wetland? 

500

Saving estimates for integrating multiple GI strategies in one development project

What is $120 million to 3.2 BILLION (City of Philadelphia)?