We have nothing to fear, but fear, this guy and global warming. (Mike Blake/Reuters)

Before you start looking over your shoulders at the computers likely surrounding you, Tuesday night, James Cameron, creator of the “Terminator” films announced that the earth has a greater threat than artificial intelligence:

Skynet was supposed to go operational tonight. Instead of machines taking over, we have the very real threat of global warming.less than a minute ago via web Favorite Retweet ReplyJames Cameron

Just to be on the safe side, I’m going to be typing extra gentle today. Nice, computer. Nice, computer. . . .