![Green walls in Harvard University](/sites/default/files/styles/resource_card_image_360x300_/public/2020-05/Green_wall_Harvard_University.jpg?itok=_ivWsw8S)
Green Walls
STEM Explained
Green walls use plant processes to improve air quality in buildings.
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How are the World's Bee Populations Doing?
STEM Explained
Bees are important for agriculture. But bee populations face threats. This resource looks at Colony Collapse Disorder, herbicides & pesticides, and more.
![Massive algal bloom](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/massive-algal-bloom.jpg?itok=pqgXB2yc)
Eutrophication: Why you should care about pond scum
STEM Explained
When fertilizers from agriculture get into lakes and rivers, big problems can result for aquatic ecosystems, food chains & webs!
![Timea Filer - Urban Forestry Field Technologist](/sites/default/files/styles/career_image/public/2019-08/Timea%20Filer_28.jpg?itok=fEY8NK3Q)
Timea Filer (Video)
Career Profiles
Urban Forestry Field Technologist
![Timea Filer | Urban Forestry Field Technician Timea Filer | Technicienne de terrain en foresterie urbaine](/sites/default/files/styles/career_image/public/Timea%20Filer_26.jpg?itok=isJEd7as)
Timea Filer
Career Profiles
Urban Forestry Field Technician, City of Guelph
![Heather Dover | Arborist Heather Dover | Arboricultrice](/sites/default/files/styles/career_image/public/Heather%20Dover_13.jpg?itok=kijAxCZD)
Heather Dover
Career Profiles
Arborist
![Warren Bills | Digital Farming Business Development Warren Bills | Développement numérique des entreprises agricoles](/sites/default/files/styles/career_image/public/6204_13.jpg?itok=fsEVFRAi)
Warren Bills
Digital Farming Business Development
![Andrew Newman | Mechanical Tree Harvester Andrew Newman | Mechanical Tree Harvester](/sites/default/files/styles/career_image/public/6215_13.jpg?itok=oLEDX3iw)
Andrew Newman (Video)
Career Profiles
Mechanical Tree Harvester
![Lacey Rose - County Forester, County of Renfrew](/sites/default/files/styles/career_image/public/2019-08/6207_14.jpg?itok=GugzDZsy)
Lacey Rose (Video)
County Forester
![Lacey Rose | County Forester, County of Renfrew Lacey Rose | Experte-forestière, comté de Renfrew](/sites/default/files/styles/career_image/public/6207_13.jpg?itok=GSVO7uXO)
Lacey Rose
Career Profiles
County Forester
![Linda Jewell | Research Scientist in Plant Pathology Linda Jewell | Chercheuse scientifique en phytopathologie](/sites/default/files/styles/career_image/public/5415_13.jpg?itok=VJc3i9Vq)
Linda Jewell
Career Profiles
Research Scientist in Plant Pathology
![Greta Chiu | Agricultural Technical Writer Greta Chiu | Rédactrice technique en agriculture](/sites/default/files/styles/career_image/public/5240_13.jpg?itok=3c6M5yy7)
Greta Chiu
Career Profiles
Agricultural Technical Writer
![Ingrid Fung | Senior Analyst Ingrid Fung | Analyste principale](/sites/default/files/styles/career_image/public/4812_13.jpg?itok=NwLeqD-x)
Ingrid Fung
Career Profiles
Senior Analyst
![Jenny Fortier - Gestionnaire de serres](/sites/default/files/styles/career_image/public/2019-08/4358_14.jpg?itok=I9q4tHdK)
Jenny Fortier (Video)
Environmental Entrepreneur
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Larisa Morier
Career Profiles
Technology Development Data Manager