In reality it doesn't make any difference at all (especially in comparison to bigger issues) but the numbers do and it's the numbers that will guide the development of low-carbon policies.

Wireless charging has all the components from non-wireless charging, then some extra pieces to handle the wireless parts.

Where are you getting the manufacturing carbon savings to offset the loss of efficiency?

They're not saying it's zero, they're saying it doesn't make a difference.

Phones don't use much power.