Cries to urgently call state of emergency in Irkutsk region as it chokes in smoke.

Alvin Williams was reported missing on May 2. His body was found Sunday, troopers said.

The Mongolian Ministry of Health confirmed two people died from plague after consuming raw meat and internal organs of a marmot.

The cold and wet hunters built a fire to keep warm until Alaska Army National Guard rescuers arrived hours later.

Spring blossoms, dusty streets, distant fires and a lack of rain combine to create hazardous respiratory conditions.

A UN official says it looks from the air like parts of Mozambique were "run over by a bulldozer".

Pollen from birch trees was carried along with dust from the Sahara Desert on strong winds that originated in Eastern Europe.

Gallery | The fires, which were swept in from Mongolia by high winds, have caused almost $9.4 million in damage.

The Arctic Sounder - Serving the Northwest Arctic and the North Slope

The death toll from a storm that crashed into southeast Africa last month has risen above 1,000, with more than 4,000 cases of cholera reported among survivors in Mozambique, the hardest-hit country.

Why air quality is worse at different times of day and how you might be violating city code with your leaf blower.

Alder catkins (the pollen-rich flowers on alder trees) haven't reached their peak yet, but there are a lot of them. There can be four to five million pollen particles in a single catkin.

The tragedy came after several days of dire warnings about the dangers of river travel due to an unusually early warm-up. Search and rescuers crawled onto weak ice, open water all around, to help retrieve the survivors.

Two four-wheelers carrying five men leaving Bethel broke through needle ice on the upper end of Church Slough on Sunday night. Two of the men died, while three others were treated for hypothermia in Bethel.

A sheriff and his two daughters were injured near Lake City in southwestern Colorado after an avalanche destroyed their home Tuesday morning.

Crews are working to free multiple cars that are trapped by an avalanche on Highway 91 near Copper Mountain, the Colorado State Patrol has confirmed.

Warm temperatures break 30 year record.

Thousands of years old ice disappears all over Norway. Dag Inge Bakke (42) is among those struggling to save the frozen archive of the past.