Questa mi era sfuggita:
Non mi pare proprio... cito: "Estimated anthropogenic global warming matches the level of observed warming to within ±20%"; e: "Human activities are estimated to have caused approximately 1.0°C of global warming above pre-industrial levels".
Ma se anche nel documento che hai indicato nel post precedente ne parlano al condizionale.
Non mi pare proprio... cito: "Estimated anthropogenic global warming matches the level of observed warming to within ±20%"; e: "Human activities are estimated to have caused approximately 1.0°C of global warming above pre-industrial levels".