Via Massachusetts Sierra Club: “In addition to the massive human and economic destruction (with concomitant embodied carbon losses) in Ukraine, there is widespread pollution from war.

• Examples: Bombing petrochemical infrastructure, power plants or fuel depots (military, airports etc.): Depot
• Power plant in Luhansk
• Building fires in general (note the thick black chemical smoke in some): Kyiv apartment and Chernihiv
• HVAC refrigerant releases or fires from bombs or fires in apartments or offices like this: Hotel
• Many buildings have exterior AC or heat pump units for example.
• Toxic petrochemical waste like rocket fuel, explosives (including unexploded ordnance). Toxic waste stored at manufacturing plants: “Azovstal bombing may put Azov Sea on the brink of extinction. According to Mariupol City Council, Russia’s bombing of the plant could severely damage its facilities for storing hazardous chemicals. Their leakage could kill all marine life in the sea.”