5 trends tracked about this subject — the full history, oldest to newest below.
Reports indicate plug-in hybrid vehicles emit six times more pollution than official ratings claim, while carmakers push to delay corrective measures.
The United States maintains its position as the world's top oil producer and consumer amid record global energy demand and emissions.
The Trump administration has introduced a record-setting proposal to roll back 702 federal regulations as part of its mid-year policy agenda.
Google and Amazon report sharp emissions spikes driven by the rapid expansion of artificial intelligence data centers.
Disneyland's Autopia attraction faces a February closure deadline unless it transitions to electric vehicles to meet California emissions standards.