title: Rising temperatures are likely to reduce crop yields.
authors: John R
authors: JR
authors: Porter
mesh_terms: D000383:Agriculture / Q000639:trends*; D001272:Atmosphere / Q000737:chemistry; D002245:Carbon Dioxide / Q000032:analysis; D005298:Fertility / Q000502:physiology; D005523:Food Supply; D017752:Greenhouse Effect; D010126:Ozone / Q000032:analysis; D013696:Temperature
chemical_list: D002245:Carbon Dioxide; D010126:Ozone