Noodle's unproven water vanishing theory

Noodle has a theory that because we throw away water bottles and the water can't evaporate we will one day run out of water. Try this experiment at home. Get 2 identical water bottles Take a water bottle add approximately 1 inch of lukewarm water and write on the lid 1. Take another water bottle add approximately 1 inch of lukewarm water write on it 2 and leave both of them it in a sunny place for an hour. Water can't evaporate because its trapped in the bottle so number 2 will have less than number 1. So in light of this new evidence make sure to dump out the water before BEFORE you throw it out