No Laws On Science.
As we all know, science has progressed greatly in the last few centuries. But, for over a millennium before hand the restrictions on scientific advancement and experimentation have been immense. Specifically the Catholic Church have put restrictions on the minds of scientists. Not until near their deaths would they release their most controversial works in fear that they could be put to death during their prime years as scientists. Imagine if there were never these restrictions throughout those centuries, how much more advanced our civilization would be. We could have perhaps been as advanced as we are now during the 1700's or even earlier. We could have even been closer to a global government as well.
Now a days these restrictions have been greatly relaxed. But due to politics, there are still many laws slowing scientific progress. I propose that a future global government should not regulate, restrict, or force any laws on scientific experimentation and progress. Foreseeing, the runaway effect of human atrocities, perhaps the only thing to be regulated should be experimentation on the masses. To clarify, lab experimentation would go completely unregulated, but using the planet and the whole of civilization as as a laboratory would not be allowed.
I foresee this would greatly increase our knowledge and technology. Allowing better life for all humans.