TY - JOUR T1 - Globe in Brief JF - The Nation's Health JO - Nations Health SP - 13 LP - 13 VL - 51 IS - 7 AU - Kim Krisberg Y1 - 2021/09/01 UR - http://www.thenationshealth.org/content/51/7/13.1.abstract N2 - Twenty-five cities produce over half of the world’s urban greenhouse gas emissions, a new study finds. ER -