Cold winter in the northern hemisphere

An urban environmental worker cleaned up the snow in front of the bronze statue of an ancient king, at a park in front of the Chosun dynasty palace in Seoul, South Korea, on January 31. Warning of snow and cold air has been issued throughout Korea. (Photo: AFP)

An electric car with many other cars quietly walks in the snow show in Toyama, Japan, on February 1. The cold air caused heavy snowfall in many areas of the rising sun. The weather agency said the snow will still fall heavily in the central region in the next few days. At least 50 people were killed in Japan during this heavy snowfall. (Photo: AFP)

A couple walks in the snow with a big umbrella on a street in the capital of Beijing, China. Heavy snowfall in China in this winter makes many highways blocked, as well as many flights canceled or delayed. (Photo: AP)

Two Afghan policemen warm themselves by burning small pieces of wood and firewood in the southern city of Kandahar. The snow suddenly fell back in Afghanistan after nearly two decades. Dozens of people were injured or trapped at home because of the heavy snow in many parts of the South Asian nation. (Photo: AFP)

A baby walks along a frozen breakwater covered on the Black Sea coast in Constanta, Romania. Cold air from Siberia, Russia, spilling into Central and Eastern Europe caused many countries to record a record low temperature, somewhere down to -27 degrees C. (Photo: AP)

The small car traveled on a white snow-covered road in Givors, near the central city of Lyon in France. (Photo: AFP)

The ducks in a cold lake in the capital, Minsk, Belarus. (Photo: AP)

A young man crouched in a warm suit as he passed a screen displaying an outdoor temperature of -17 degrees Celsius in Independence Square in the capital, Kiev, Ukraine. (Photo: AFP)

Italy's central city of Siena is covered with a white blanket of snow. (Photo: AP)

Two doves eat breads falling on a frozen river in Moscow, Russia. Outdoor temperature is then -18 degrees C. (Photo: EPA)

People rushed in the snow and on the snowy road
White cover at the capital measuring Stockholm, Sweden. (Photo: AFP)

A man sits on a tram in the center of Bulgaria's capital Sofia, with frost on the glass door. Many people in this country were killed when the temperature dropped to the lowest level in a century. Across Europe, at least 80 people have died in a record cold spell and this number could rise. (Photo: AFP)