Translate the following English sentence to French:
"Indeed, the notion of sustainable development takes on real meaning in such countries, and more particularly in the very poorest of them, since these are the countries which most often experience large-scale disasters, including the natural disasters which have recently become increasingly common."
En effet, la notion de développement durable prend tout son sens dans ces pays et, en particulier, dans les plus pauvres d'entre eux, car ce sont ceux qui souffrent le plus souvent des grandes catastrophes, y compris les catastrophes naturelles qui se multiplient en cette fin de siècle.