Like all great pledges, it is just the right side of implausible. The UK aviation sector this week committed to making flying “net zero” by 2050, wiping out its carbon emissions despite taking more than 100 million extra passengers into the air each year.
That depends on whether they manage to grow biofuels without destroying rainforest or food land. It is possible, there are over 5000 oil plants, some grow on desert-like soils, others in mixed-fruit cultivation. You just have to get the production method right! .
No.
No but they can offload it to a few trees in some far off country. That's the beauty of carbon zero - you can do what you want just get someone to plant uneconomic forests in a country that should target be planting food producing crops.
If they plant a hell of a lot of trees pert flight, then maybe.