Sentence examples for principal environmental problem from inspiring English sources

The question arises because, in one or both of his speeches, the Pontiff will certainly address the principal environmental problem facing the word: can the international community reach an agreement on halting global warming at the forthcoming UN climate change conference in Paris in December?

Not every environmental problem deserves a rule".

contamination had caused an "unprecedented environmental problem".

Not to mention an environmental problem.

"Litter is not just an environmental problem.

"This is not just an environmental problem.

Why is e-waste an environmental problem?

The public understands that energy prices are an environmental problem.

It is a significant and avoidable environmental problem.

Modburians have a talent for environmental problem solving.

Such drainage is a major environmental problem worldwide.