Please show me what percentage (or any non-modeled number) of that rise is due to human activity. Now, we can talk about solutions.
If they replaced it with a standard lead acid it would have been flying already.
Few large airplanes use lead-acid batteries anymore. NiCad is pretty standard for anything larger than a Cessna 210.
When a fellow says, "It ain't the money but the principle of the thing," it's the money. -- Kim Hubbard