https://www.theguardian.com/technology/2020/feb/21/climate-tweets-twitter-bots-analysis

Draft of Brown study says findings suggest ‘substantial impact of mechanized bots in amplifying denialist messages’

The social media conversation over the climate crisis is being reshaped by an army of automated Twitter bots, with a new analysis finding that a quarter of all tweets about climate on an average day are produced by bots, the Guardian can reveal.