Fig. 1: Spatial-temporal diversity of the U.S. carbon intensity (kg/kWh).
From: Optimizing carbon footprint in long-haul heavy-duty E-Truck transportation

a The average carbon intensity in different states. b The carbon intensity varying in time during the first week of 202415. Large variation in carbon intensity are commonly observed in other times of the year. Source data of this figure are provided in the Source Data file.