Vertaling van "scientific proof which weighs heavily enough " (Engels → Frans) :

The burden of scientific proof, which weighs heavily enough on those wishing to protect the health of their population, puts a brake on applying the precautionary principle or actually prevents it.
La charge de la preuve scientifique suffisante pesant sur l’acteur soucieux de protéger la santé de sa population freine ou empêche en pratique l’application du principe de précaution.