Last year's major crop failure was in Australia: the wheat crop. It and high oil prices drove grain prices to double or more, which had terrible knock-on effects in food markets in developing nations.
This year we had the mid-western floods, but the UK currently seems the epicenter of failed crops. The Guardian has a sequence of photos here.
Note the accompanying story. The UK media and public connect these events to climate change much more easily than do Americans with similar events.