Northern Hemisphere Emissions May Cause Subtropical Drying
Date Posted:
May 18, 2012
Publisher:
Nature
Scientists find that emissions of black carbon aerosols—small atmospheric particles—and tropospheric ozone, pollutants mostly emitted by countries in the low- to mid-latitudes of the Northern Hemisphere, are expanding the width of the tropical boundary. This expansion could lead to subtropical regions, such as the U.S. SW, becoming even drier as mid-latitude precipitation would be shifted poleward, according to the lead author as quoted in Science Daily.