All countries benefit from the elements of the WWW; without it Canadian meteorologists could not be reasonably sure that they would get the weather observations required for forecasting , or that weather observations made in Canada would reach other countries needing them .
The above sentence is very complicated. Please provide me a simplified synonymous version consisting of multiple sentences:
Without them , Canadian meteorologists would not be sure they had the meteorological observations essential to predict the weather . They were also not sure whether meteorological observations made in Canada were available to other countries in need .