"I am convinced the prophets of doom have to be taken seriously"

Maurice Strong's quote recommends that we ought to take the cautions of those who anticipate negative outcomes seriously. He thinks that these prophets of doom must not be disregarded, as their forecasts may be precise. He is suggesting that we should take their warnings seriously and take action to avoid the negative outcomes they anticipate. He is likewise suggesting that we should not be contented and presume that the negative outcomes will not take place. We should take proactive actions to guarantee that the unfavorable outcomes are avoided. By taking the cautions of the prophets of doom seriously, we can ensure that we are prepared for any prospective unfavorable outcomes and can take actions to avoid them from occurring.