Classify the emotions found in the tweet "Biggest #THREAT 2 #GLOBAL #STABILITY? #climatechange #food #water #security #terrorism #russia #war #trump #clinton #geopolitics #korea $vwo". Select from the following: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If the tweet is emotionless, reply "neutral or no emotion".
anger, disgust, fear, pessimism