Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: That said–due to passing the 50yr mark awhile ago–I know most of the #horrific damage to the #planet won't occur before my 'natural' #death.
This tweet contains emotions: 
fear, sadness