https://www.scientificamerican.com/article/twitter-bots-are-a-major-source-of-climate-disinformation/

Twitter accounts run by machines are a major source of climate change disinformation that might drain support from policies to address rising temperatures.

In the weeks surrounding former President Trump’s announcement about withdrawing from the Paris Agreement, accounts suspected of being bots accounted for roughly a quarter of all tweets about climate change, according to new research.