World Bank Group - Pollution Management
UPGro - Africa Aquifer Pollution Risk Maps
Global Alliance on Health and Pollution
Risk Maps (Eawag): World and South East Asia
Pure Earth
WAQI: Real-time Air Quality Index
NASA Visualization of the Ocean's Garbage Patches
One year time-lapse of CO2 surface concentration: 2016
Global map of PM10
Environment Live: Pollution Data and Information
OpenAQ: Air quality data
Dirty Air: India's Pollution Nightmare
Global map of PM2.5
UN Environment Programme
Blue Map China: National Environmental Data
Open Government Data India
World's most polluted cities
Air Pollution Data
GEMStat Data visualization Portal 
Center for International Earth Science Information Network
Global Environment Monitoring System for Freshwater
World Water Quality Portal
GEMStat: Water Quality
GEMStat Statistics Report
POPGRID Viewer
World Waste Platform
Pakistan Air Quality Initiative
WHO Global Health Observatory
Yale EPI
Save the oceans
NASA: Vital signs of the planet
Facebook population maps
What pollutes the oceans
Plastics affects marine species
Air Pollution 101 - National Geographic
WHO: How Pollution Affects Health
The Blue Map
Earth Wind Map: Winds and Chemicals Map
Environmental Performance Index
UNEP - Our impact on the planet
Our World In Data: Environmental research articles
Global Burden of Disease
GEOSS: Earth observation data
UN Stats
UNESCO-IHP IIWQ World Water Quality Portal
Global map of CO2
Global map of Currents
NOAA - National Data Buoy Center
Global Climate Observing System (GCOS)
Toxic Sites Identification Program (TSIP)
UNEP: Data and statistics
Sea Level Change Portal
World Bank: Environmental data
Map of fires
Global Forest Watch Fires
Global map of Sulfates
Waste Atlas
Global map of PM1.0
Global map of SO2
Global map of CO
 E-waste world map
Urban Emissions in India
Global map of Dust