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The state Division of Air Quality is warning of the smoke's potential health effects, with advisories in effect until Friday evening, pending any extensions.

In recent decades, Norway has seen a clear increase in the number of days that are warmer than normal. Here you can check the development 42 locations in the country.

The latest update put the Swan Lake fire’s size at 23,530 acres.

So far, this year's summer may not give associations to climate change, but for the past 30 years, summer has actually been a full 12 days longer in Oslo.

The average temperature for the entire country was 1.2 degrees above normal in March. It is thus the twelfth month in a row that the temperature in Norway has been above normal.

March becomes the hundredth month in a row with temperatures above normal. "It is unique and shows how fast climate change is happening in the Arctic," says climate scientist Ketil Isaksen at the Meteorological Institute (MET).

President Moon hopes collaboration with China will improve air quality in the country.

The 2015 to 2016 El Niño event brought weather conditions that triggered regional disease outbreaks throughout the world.

While most of Canada has been experiencing a colder winter, Inuvik and Tuktoyaktuk have had their warmest February since 2006.

Greenhouse gas emissions provide extreme warming on Svalbard.

Climate change is ravaging the natural laboratory that inspired Darwin. The creatures here are on the brink of crisis.

Global warming has already resulted in more forest fires out West, according to the latest National Climate Assessment. The future could see more of the country burn.

Our hottest and coldest days are both getting warmer and tropical nights are becoming more common, a report says.

The permafrost beneath certain lakes is thawing rapidly, which will release a significant amount of methane into the atmosphere.

Air pollution may contribute to Sudden Infant Death Syndrome (SIDS), according to research at the universities of Oulu and Birmingham.

Extreme smoke seems to be a new feature of summers in British Columbia with back-to-back years of heavy wildfires in the province and, for some, the overcast skies are taking a toll on mental health.

The B.C. Centre for Disease Control recommends children and elderly stay indoors during lingering smoke from forest fires.

The smoke has pushed pollution in Calgary and other cities to dangerous levels, and cast an unsettling, spooky haze over almost every part of B.C.

More than 100 fires are burning in B.C.'s Southeast Fire Region, with half of them caused from a lightning storm earlier in the week.

Many places across Southern California saw one of the warmest Julys ever recorded in 2018, including downtown Los Angeles and Death Valley