Sunday, Aug 19, 2018
FILE PHOTO: An undated NASA illustration shows Arctic sea ice

FILE PHOTO: An undated NASA illustration shows Arctic sea ice

FILE PHOTO: An undated NASA illustration shows Arctic sea ice at a record low wintertime maximum extent for the second straight year, according to scientists at the NASA-supported National Snow and Ice Data Center (NSIDC) and NASA. NASA/Goddard’s Scientific Visualization Studio/C. Starr/Handout via Reuters/File Photo