No mention of rail? Not a solution in the US, but virtually all of Europe and Asia is connected by a dense, largely inexpensive, rail network which is increasi

No mention of rail? Not a solution in the US, but virtually all of Europe and Asia is connected by a dense, largely inexpensive, rail network which is increasingly being electrified. That puts the onus on the grid, but there is a trend towards lower carbon electricity so emissions should lower over time. You can walk and cycle the rest of the way. The reason we fly is because its cheap, fast and convenient.