It was a week of contrast across the world, as skies held beauty and dumped rain in the United States and Europe, while in China the atmosphere carried potential health hazards.
In this picture made available Monday, Feb. 24, 2014, polar lights shine in the sky above Guelper Havel river in Guelpe, northwest of Berlin, Germany, Sunday, Feb. 2014. These northern lights are caused by a giant cloud of electric particles of a sun storm in the Earth's atmosphere. (AP Photo/dpa, Patrick Pleul)
Vehicles clog a main highway during a sixth straight day of severe pollution in Beijing Tuesday, Feb. 25, 2014. Hazardous white pollution hid much of Beijing's skyline Tuesday, despite announced closures or production cuts at 147 of the city's industrial plants. Chinese characters on board reads: "Smog weather, reduce going outside." (AP Photo/Ng Han Guan)
Track officials and car crew members look over the track during a rain delay in the Daytona 500 NASCAR Sprint Cup Series auto race at Daytona International Speedway in Daytona Beach, Fla., Sunday, Feb. 23, 2014. (AP Photo/John Raoux)
Some green peaks out through ice in Stamford, Conn., on Monday, Feb. 24, 2014, as an early sign of spring. (Facebook/AccuWeather Fan "Hilkka")
On Monday, Feb. 24, 2014, an ice jam created a wintry scene in western Pennsylvania, near Pittsburgh. (Facebook Photo/Laura Kosht Ice)
On Tuesday, Feb. 25, 2014, asperatus clouds hovered over the Atlanta, creating an ominous but bizarrely beautiful sky. (Twitter Photo/@Jeremy11alive).
Ahead of an approaching storm system, unseasonable warmth will overspread much of the United Kingdom on Sunday and Monday.
With no exact details on where Malaysia Airlines Flight 370 went missing, Indian Ocean currents may have swept one piece of the complicated puzzle to shores on Reunion Island.
The stream of moisture into the Southwest is drying out some, so this weekend may not be as wet as the previous few days.
Life-threatening heavy rainfall will continue to focus on northeastern India, Bangladesh and western Myanmar into Monday before a drier weather pattern sets in.
Heat and humidity remained in control over the much of the country during the last week of July.
The air felt like an exceptional 163 F in Bandar Mahshahr, Iran, on Friday and similar or worse conditions will follow.
New York City, NY (1996)
No 90 degree reading in Central Park in all of June and July - the first time on record this has happened.
Kanata, Ontario, Canada (1996)
A severe thunderstorm downed electrical wires and trapped people in their cars and a bus for 1-2 hours. Amazingly, nobody was injured.
Scituate, MA (1769)
Hail fell 12" deep and remained on the ground for 30 hours.