The Living building challenge is not for the faint of heart. Part polemic, part rating system, it looks squarely at the environmental crisis — from rising global temperatures to shrinking natural habitats — and asks: What are we going to do about it, not in a few decades or a few years, but today?
Points to note:
* "the faint of heart" needs to be said as a single expression
* The "a" in "natural" is pronounced like "bat" or "Saturday"
* Your tone is rising for the word "today", is if you were asking a question about today. The question is "What are we going to do about it?". The rest of the sentence simply qualifies the question.