Global dimming and warming.

[KichigaiNeko]

Shades of "The Day After Tomorrow"?

http://en.wikipedia.org/wiki/Global_dimming

Causes and effects

Further information: Albedo, irradiance, and insolation
It is thought that global dimming is probably due to the increased presence of aerosol particles in the atmosphere caused by human action.[2] Aerosols and other particulates absorb solar energy and reflect sunlight back into space. The pollutants can also become nuclei for cloud droplets. Water droplets in clouds coalesce around the particles.[3] Increased pollution causes more particulates and thereby creates clouds consisting of a greater number of smaller droplets (that is, the same amount of water is spread over more droplets). The smaller droplets make clouds more reflective, so that more incoming sunlight is reflected back into space and less reaches the Earth's surface. In models, these smaller droplets also decrease rainfall.[4]
Clouds intercept both heat from the sun and heat radiated from the Earth. Their effects are complex and vary in time, location, and altitude. Usually during the daytime the interception of sunlight predominates, giving a cooling effect; however, at night the re-radiation of heat to the Earth slows the Earth's heat loss.

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Yep...it's ALL about the light.

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This makes alot of sense .... Good one Ace!!