Start Date: End Date: Published Date Data Date
Data acquired 1970 - 1990 720 x 360 PNG
Data acquired 1970 - 1990 498 KB - PDF
Data acquired 1930 - 1990 720 x 360 PNG
Data acquired 1930 - 1990 508 KB - PDF
720 x 480 PNG
Sulfates kept the eastern United States from warming as much as other regions, but cleaning up the air has changed the equation.
NASA Earth Observatory image by Jesse Allen, based on data provided by Eric Leibensperger (Harvard University). Caption by Adam Voiland.
Published May 18, 2012 Data acquired 1930 - 1990