Some cities can serve as hotspots providing in-depth insights on particular topics.
Known for its dependency on fossil fuels, Ukraine is showing more and more interest in renewables.
Lviv has been among the first Ukrainian cities to limit the use of plastic bags in favor of sustainable alternatives.
Environmental outcomes in the city's agricultural landscape are far less green than widely assumed.
Renewables can boost employment while also generating savings of up to $160 trillion over the next 30 years.
Diseases like malaria and dengue fever will likely spread ever farther afield in coming decades.