Zurich is expanding its district heating system, which delivers hot water and steam through underground pipes. With more buildings relying on this system for heat, there's less demand for natural gas.
City of Zurich
Picture of a sign warning about the presence of hippos in a neighborhood in Colombia, near the Hacienda Napoles theme park, once the private zoo of drug kingpin Pablo Escobar.
RAUL ARBOLEDA/AFP via Getty Images
Cattle graze on land burned and deforested by cattle farmers near Novo Progresso, Para state, Brazil. Brazil is among the nations that have signed a pledge to protect forests.
Activists protesting "greenwashing," in which a company or government appears to do more for the environment than it is, gather outside the JP Morgan premises near the COP26 U.N. Climate Summit.