Background Articles

Climate change is causing more severe flooding around the country, and a disproportionate number of Native American communities are on the front lines.

A team of biologists is surveying a lake on Kodiak Island for crawfish, an invasive species in Alaska that has been observed in higher frequency over past several years.

Thirty-five people drowned in Sweden this July, compared to 12 people who lost their lives to drowning last July.

Sixteen water bodies were added to this week's list.

EUMETSAT satellite shows blue-green algae bloom covering Lake Okeechobee.

Harmful algae blooms are something Montana has to worry about every summer, and now there have been a couple places in central and western Montana confirmed to have the harmful blue green algae. T...

From floods to fires, drought to coastal erosion, climate change is already having an impact on Canada's communities, landscapes and wildlife

Blue-green algae has bloomed again in Lake Okeechobee, filling waterways with putrid sludge that can contaminate local water and marine animals.

Water quality in Anchorage's lakes is generally good, but swimmer's itch is a risk.

The combination of abundant rain and snowfall and extremely warm mean annual air temperatures may have led to the destabilization of permafrost around lake margins. Rapid snow melt and high amounts of excess meltwater further promoted rapid lateral breaching at lake shores and consequently sudden drainage of some of the largest lakes of the study region.

An oxygen-starved area of almost 165,000 square kilometres in the Gulf of Oman is now the world’s largest marine “dead zone.” Incapable of supporting

The initial results represent 330 participants from six communities. Around 98 per cent of participants had mercury levels below the health guidance value - a baseline to assess health risks.

Average number of days with heavy rain or snow across Canada has been outside norm since spring 2013

Researchers reveal why Arctic sea ice began to melt in the middle of winter two years ago -- and that the increased melting of ice in summer is linked to recurring periods of fair weather.

Climate change may be enabling beavers to move deeper into the Arctic. And as they move, they magnify climate change’s effects.

Climate warming is likely to bring more episodes of heavy rain, above-freezing winter thaws and scorching hot summer days in the coming decades, says a study by scientists at the University of Alaska Fairbanks.

Only 1,123 adult winter Chinook salmon, once one of the biggest salmon runs on the Sacramento River and its tributaries, returned to the Sacramento Valley in 2017, according to a report sent to the Pacific Fishery Management Council (PFMC) by the...

In August 2017, Sun’aq Tribe of Kodiak was awarded funding by USFWS Tribal Wildlife Grant (TWG) Program. The two-year project, titled “Distribution, Movement and Diet of Invasive Crayfish Populations in Buskin River Watershed on Kodiak Island, Alaska” focuses on characterizing the distribution (snorkel/scuba diving surveys), movement (radio tagging) and diet (stable isotope analyses) of the Signal Crayfish population within Buskin Watershed.

The 500-foot, rock-filled trench won't be as long as experts advise and wasn't engineered to protect private property.

High severity burns bring higher concentrations of white ash and burned soil organic matter, which is more prone to erosion, overland flow, and leaching, while also being associated with low plant survival.