The number of environment-related inventions expressed as a percentage of all domestic inventions (in all technologies).
Indicators of technology development are constructed by measuring inventive activity using patent data across a wide range of environment-related technological domains (ENV-TECH, see link below), including environmental management, water-related adaptation, and climate change mitigation technologies. The counts used here include only higher-value inventions (with patent family size = 2).
Type of variable: Continuous