I love this.

Nigel Leck, a software programmer, got bored with constantly responding to climate change skeptics on Twitter. So he built a chat agent to do it for him. The agent scans every five minutes for set phrases connected with tropes about why climate change isn’t caused by man. Then it automatically chats from a honed database to refute the arguments, complete with references to peer-reviewed literature.

My favorite, though, is the included reference to the related story on Hacker News:

…it’s Clippy for the internet.
I see you’re trying to deny global warming. Would you like to:
1. Research the available facts and science?
2. Have an authority figure you trust tell you, you’re wrong?
3. Meet other like-minded singles?