@johndurant oh, oops! sorry. @cillakat's link works: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature12820.html …
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
@johndurant oh, oops! sorry. @cillakat's link works: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature12820.html …