Effective change requires shifting the system. Personal choices for coffee cups, cars, etc are largely irrelevant besides wrangling your own guilt. A actual ch

Effective change requires shifting the system. Personal choices for coffee cups, cars, etc are largely irrelevant besides wrangling your own guilt. A actual change needed for airlines is to tax airlines at the cost of emissions and pollution they produce and have produced historically. This can be analyzed down to the supply chain level - how much does it cost to build, how much pollution is produced in the process. How much wetlands have been damaged by airfields, etc.