title: Greenhouse-gas numbers up in the air.
authors.forename: Jeff
authors.initials: J
authors.lastname: Tollefson
mesh_terms: D000393:Air Pollutants / Q000032:analysis; D001272:Atmosphere / Q000032:analysis; D002140:California; D002244:Carbon / Q000032:analysis; D004784:Environmental Monitoring / Q000191:economics / Q000295:instrumentation / Q000379:methods* / Q000592:standards*; D017752:Greenhouse Effect
chemical_list: D000393:Air Pollutants; D002244:Carbon