Dallas hopes new climate data can help shape strategies to combat the urban heat island effect that makes some areas 10 ...

Formerly two separate cities, Dallas and Fort Worth have been joined by urban sprawl, now connected by 30 miles of suburbs (not to mention the Trinity Railway Express light rail system).

Irving and Dallas land at No. 3 and No. 4, respectively, and Arlington comes in at No. 10 out of the 116 U.S. cities included in the report. Three more Dallas-Fort Worth cities also rank among the ...