Where are all of the emissions coming from? I keep hearing that automobiles account for a small % and that trucking and shipping account for the majority, but you're saying shipping is only 1%.
Not sure if there's more recent stats, but 2020 data: https://ourworldindata.org/co2-emissions-from-transport
Maritime shipping is only 1%. Road transport is about 20x that.
That isn't true about private automobiles and I would be interested to know where you have been hearing it. It must come from some party with a vested interest in making car emissions seem like a non-problem. In reality, car emissions are the main thing that Americans and most other rich countries should be trying to address.
Here's a graphic of the latest data available for California, as an example: https://ww2.arb.ca.gov/sites/default/files/images/2023_scopi...