Well It ain't nothing to do with saving the enviroment, just another way of converting the scare tactics of global warming into another stealth tax.
Do you want to beat them? silly question I know, but there are still some gullable people about that think we are all going to be washed away when the ice melts.
Get a decent van or pickup, something you can chuck all that gardening gear into. VED is levied as a light delivery vehicle. which will stay the same regardless of emissions, engine size, etc. Now you have a mobile shed, transport, and compost carrier which is also tax deductable on your gardening 'business'. Your tools, plants, fuel etc will also be tax deductable. No need to earn a living. just pretend.
Now back to if the ice melts.
I may be wrong but I always thought that water expands as it turns to ice. Where this ice is displacing water surely the water level will drop if it melts. There you go we've all been had again. Someones making a lot of money out of us.