Navigation Links
Sunscreen Covering Earth Becoming Thinner

A new study by the National Aeronautics and Space Administration (NASA) has revealed that the sunscreen of aerosols over the earth has been thinning// since early 1990s.

Aerosols are tiny particles suspended in the air. Some occur naturally, originating from volcanoes, dust storms, forest and grassland fires, living vegetation, and sea spray.

Aerosols tend to cause cooling of the Earth's surface immediately below them.

Because most aerosols reflect sunlight back into space, they have a "direct" cooling effect by reducing the amount of solar radiation that reaches the surface. Thus it is an important counter-balance to global warming by greenhouse gases.

The thinning of the "sunscreen” could have given an extra push to the rise in global surface temperatures, it is felt.

In a related study published last week, scientists found that the opposing forces of global warming and the cooling resulting from aerosols could occur at the same time.

"When more sunlight can get through the atmosphere and warm Earth's surface, you're going to have an effect on climate and temperature," said lead author Michael Mishchenko of Nasa's Goddard Institute for Space Studies.

The data used by the study show large, short-lived spikes in global aerosols caused by volcanic eruptions in 1982 and 1991, but a gradual decline since about 1990. By 2005, global aerosols had dropped as much as 20% from the stable level between 1986 and 1991.

Page: 1

Related medicine news :

1. Use Of Sunscreen In Childhood And Prevents Future Skin Cancer
2. Sunscreen Lotions Offering High Protection May Be Better Than Usual Sunscreens
3. People Still Neglect To Use Sunscreen In Spite Of Cancer Warnings
4. Lawsuit Against Sunscreen Makers For False Claims of Protection Against Skin Cancer
5. Lifting The Screen off Misleading Sunscreen labels
6. Use of Nanoparticles in Sunscreen under Scrutiny
7. How Effective Is Your Sunscreen?
8. Sunscreen Blocking UVA Radiation Receives Federal Approval
9. Improper Usage Of Sunscreen Can Harm Skin
10. Sunscreen creams – use them appropriately
11. More Sunscreen, Please
Post Your Comments:

(Date:6/25/2016)... ... June 25, 2016 , ... Experts from the ... AcademyHealth’s Annual Research Meeting June 26-28, 2016, at the Hynes Convention Center in ... topics including advance care planning, healthcare costs and patient and family engagement. , ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand gesture animations, FCPX ... Austin - CEO of Pixel Film Studios. , ProHand Cartoon’s package transforms over ... Cut Pro X . Simply select a ProHand generator and drag it above media ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson has dedicated ... has implemented orthobiologic procedures as a method for treating his patients. The procedure ... doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use to ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article published June ... with. The article goes on to state that individuals are now more comfortable seeking ... common operations such as calf and cheek reduction. The Los Angeles area medical group, ...
(Date:6/24/2016)... ... ... was in a crisis. Her son James, eight, was out of control. Prone to extreme ... “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If there was ... other children and say he was going to kill them. If we were driving ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... -- Research and Markets has announced the addition ... - Forecast to 2022" report to their offering. ... to date financial data derived from varied research sources to ... potential impact on the market during the next five years, ... of sub markets, regional and country level analysis. The report ...
(Date:6/23/2016)... Research and Markets has announced the ... report to their offering. ... favourable commercial environment for MedImmune to enter. The US ageing ... serve to drive considerable growth for effective anti-influenza medications. The ... sales considerably, but development is still in its infancy. ...
(Date:6/23/2016)... , June 23, 2016 , ... on Thursday, July 7, 2016 , , , , LOCATION: ... , , , , EXPERT PANELISTS:  , , , ... Senior Industry Analyst, Christi Bird; Senior Industry Analyst, Divyaa Ravishankar and ... The global pharmaceutical industry is witnessing an exceptional era. ...
Breaking Medicine Technology: