Scientistsindevelopingnationsplantostepupresearchintodimmingsunshinetocurbclimatechange,hopingtojudgeifaman-madechemicalsunshadewouldbelessriskythanaharmfulrise
JapanonSaturdaylaunchedanH-2Arocketcarryingageo-positioningsatelliteintoorbitafteraweek-longdelay,thegovernmentsaid.ThelaunchofJapan'sthirdgeo-positioningsatell