Of the 92 pools of mosquitoes tested, 30 had at least one mosquito that tested positive for California serogroup viruses. There has been one confirmed diagnosis of meningoencephalitis — a severe neurological condition — caused by the snowshoe hare virus. There have been no positive cases yet of West Nile Virus.

The hordes of fish were killed by a red tide, a large "bloom" of toxic algae that appears on Florida's Gulf Coast about once a year. Experts say the bloom shouldn't be happening right now.

Active fires in northeastern Ontario and eastern Manitoba are expected to send smoke across northern Quebec today and Wednesday, Environment Canada said in a special air quality statement posted for each of the region’s 14 communities.

Wildfires on permafrost are ravaging Yakutia - or the Sakha Republic - the largest and coldest entity of the Russian Federation. The scale is mesmerizing. There are some 300 separate fires, now covering 12,140 square kilometers - but only around half of these are being tackled, because they pose a threat to people. The rest are burning unchecked.

Thunderstorms in Northern Alaska over sea ice on Monday sparked rare lightning strikes. The Washington Post reported lightning strikes occurred north of Prudhoe Bay, directly over sea ice, a rare phenomena that occurs once or twice a decade.

A bat in High Park tested positive for rabies on Wednesday, according to Toronto Public Health.

Climate change is keeping temperatures higher in the fall, setting up browntail-moth caterpillars to boom in summer. Their hairs are barbed and hollow and there’s a reservoir of a toxin inside.

The prospects are dim for this summer’s Norton Sound commercial fishing and crabbing seasons.

Gases from the ongoing eruption on Iceland’s Reykjanes peninsula may lead to fewer sunny days this summer, Vísir reports. Eruption gases have been creating a haze in the capital area in recent days and causing discomfort for people with asthma or other lung conditions. Air quality specialist Þorsteinn Jóhannsson says locals should get into the […]

As of Monday evening, no structures had been damaged in the Munson Creek Fire, which was less than a half mile from the popular resort.

Air quality alerts remain in place for several areas in B.C.'s southern Interior on Tuesday as more than 200 wildfires continue to burn through hundreds of square kilometres of the province.

It's been a hot July. In fact, it was the 10th warmest in 120 years.

An extended period of hot, dry weather is affecting the harvest outlook and impacting grain growth. Even the wild berry season, which was off to a good start, may be in peril.

After a black bear was shot dead in her front yard, a Whitehorse resident is concerned that people are inadvertently luring bears into the neighbourhood by feeding wildlife.

Deadly blaze that killed four people and forced evacuation of 10 villages is now close to being under control

Lapland was Finland's hottest region on Monday with a measuring station in the village of Utsjoki recording 33.5 degrees celsius. A high-pressure front dominating Central and Eastern Europe is behind the drought and high temperature readings.

Millions of small black flies have taken over mountains and hiking trails. "I thought it was horrible," says Pernille Frøskeland.

According to police sources, flow in the region’s swollen rivers dropped slightly overnight, but that this is likely explained because the air temperature usually drops overnight. Flow is expected to increase again today.

An Aniak resident found these plants below Oskawalik and never have seen them before. Identification is still in progress.

The number of deaths recorded across British Columbia during the province's recent record-breaking heat wave has climbed to 808, according to coroners.