Examine the tweet "We're in contained depression. Only new economic engine is #Sustainability, say Joel @makower + @markmykleby @ #VERGEcon. #NewGrandStrategy" and determine which of these emotions are present: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If there are no identifiable emotions, reply with "neutral or no emotion".
pessimism, sadness