Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
Map of the month: GfK Purchasing Power Europe 2017
Europeans have an average of €13,937 available for spending...
.Earth Domain Celebrates Second Anniversary By Making a Positive Impact Both Online and Offline
Interlink Co., Ltd., the official operator of the .Earth...
SSL Selected to Conduct Power and Propulsion Study for NASA’s Deep Space Gateway Concept
PALO ALTO, Calif. - SSL, a business unit of...
Esri Collaborates with Mobileye to Bring Real-Time Sensor Data to Public Transit
REDLANDS, Calif.— Esri, the global leader in spatial analytics,...
CTIA Calls on FAA to Recognize That Commercial Wireless Networks Offer Best Platform to Support Fast-Growing Drone Market
WASHINGTON - CTIA, the wireless association, today called on the...

Between 1970 and 1990—the period when sulfates were at their highest levels—average temperatures were nearly 1° Celsius (1.8° Fahrenheit) cooler in a core area centered on Arkansas and Missouri and about 0.7° Celsius cooler in a larger tear-drop region throughout the Midwest and Mid-Atlantic.

In the U.S. central and eastern regions, a giant “warming hole” has created cooler areas that haven’t kept pace with the warming of other parts of the world during much of the last century.

Climate scientists have taken to calling the large area of cooling a “warming hole,” because the areas surrounding it have warmed at a faster rate. For more than a decade, researchers have puzzled over what’s causing the warming hole over the United States.

Previous research has suggested natural variations in sea surface temperatures might be responsible, but a new study puts the focus on sulfates, a type of aerosol produced by coal power plants that’s known for causing acid rain. Sulfates are light-colored, and they cause cooling by scattering and reflecting sunlight. They also lower temperatures indirectly by making clouds more reflective and long-lasting.

Read the full story.

Comments are closed.