Twitter have just switched on the ability to display trending topics from a range of locations (or keep it Worldwide)

Countries: Brazil, Canada, Ireland, Mexico, United Kingdom, United States.

Cities: Atlanta, Baltimore, Boston, Chicago, Dallas-Ft. Worth, Houston, London, Los Angeles, New York City, Philadelphia, San Antonio, San Francisco, Seattle, São Paulo, Washington, D.C.

Nice to see non-US locations included at launch, though doesn’t this start to dissipate the global conversation, one of the phenomena which makes Twitter so amazing?

Old Twitter interface introducing its Local Trends location setting.