I think that the best available options are to:
- Leave it as it is, GDC already thought of this
- Allow robots to throw litter to the other side
- Increase the points for having a litter in a recycling can to 8 points
- Give the team with the least unprocessed litter the difference in number of litter
- Give teams 30 points if they have no unprocessed litter on their side of the field
(5. will give teams the points of the noodle agreement if they have all ten of their noodles in the landfill zone)
Personally I think 5 is the best option.