From PopSci:
Getting into a climate change debate on Twitter could be even more exhausting than it sounds now that a software developer named Nigel Leck has automated the process. Tired of arguing with climate change deniers in 140 character quips, the programmer wrote a script to do it for him. Chatbot @AI_AGW scans Twitter every five minutes searching for hundreds of phrases that fit the usual denier argument paradigm. Then it serves them up some science.