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Air quality and weather data
API to calculate carbon (C02) emissions estimates for common C02 emitting activities
API calculates the impact of common carbon-intensive activities in real time
Green Power Index for Germany (Grünstromindex/GSI)
Aggregation of multiple environmental indicators (CO2 emissions, Average temperature, etc)
Open air quality data
Open low-cost PM2.5 sensor data
Air quality of China
Energy production photovoltaic (PV) energy systems
The Official Carbon Intensity API for Great Britain developed by National Grid