Background Articles

A new study from Kodiak’s NOAA Alaska Fisheries Science Center links ocean acidification to a significant decline in red king crab populations in the Bering Sea, challenging the view that warming is the primary stressor.

Warm Atlantic waters are rapidly reshaping the Siberian Arctic, sparking an era of unprecedented sea ice loss—something that will have ongoing implications for the region’s ecosystem and climate, says new research.

A new study reveals that climate change has shifted large parts of the Arctic from a carbon sink to a net carbon emitter, with up to 40% of tundra, boreal forests, and wetlands releasing more CO2 than they absorb.

A part of a pedestrian bridge collapsed onto the Seward Highway in Anchorage due to high winds, blocking the highway temporarily, though the bridge's main structure remained intact. No injuries were reported.

Mälarenergi in Västerås, Sweden, is testing carbon capture technology to reduce emissions from its waste-to-energy plant. This initiative could significantly decrease CO2 emissions, key for addressing climate challenges.

A recent study indicates that dust plays a significant role in the Arctic's climate changes, affecting how clouds form and their impact on the region's climate dynamics.

Thawing permafrost in the Arctic region is releasing significant amounts of carbon and nitrogen, posing environmental challenges due to increased greenhouse gas emissions.

New data reveals high salinity levels in several Halifax lakes, posing a threat to aquatic life. Halifax considers new measures to manage salt runoff.

Findings from European scientists were published in a journal late last year.

A new study found that the drying Great Salt Lake in Utah is now a major source of the gas emissions that are causing the climate to warm.

With the future of fossil fuels in question, an Australian oil company is branding its new Arctic development as climate-friendly.

Rivers and streams in Alaska are changing color – from a clean, clear blue to a rusty orange – because of the toxic metals released by thawing permafrost, according to a new study.

Recent discoloration of 75 streams in Arctic Alaska reflects increased iron and trace metal loading following climate-driven permafrost thaw. These findings have considerable implications for drinking water supplies and subsistence fisheries.

The oranging of northern rivers seems to be related to recent permafrost thaw that has allowed streams to release previously captive iron, trace metals and acid.

The EPA plans to limit or eliminate a chemical commonly used in car tires, known as 6PPD, after it was found to be fatal to salmon in preliminary Alaska sampling, in response to a petition from Native Tribes and several states, but the rulemaking process is expected to take years.

The warming of the Arctic has caused a significant shift in the ecosystem of Great Slave Lake, with smaller diatoms replacing larger ones, potentially impacting the lake's productivity, carbon dynamics, food web, and nearby communities.

Scientists warn that methane trapped beneath the Greenland ice sheet could intensify climate warming as the ice melts, releasing the potent greenhouse gas into the atmosphere at accelerating rates.

If added altogether, deposits of wood across the Mackenzie River Delta would cover a third of Yellowknife. Researchers calculated how much carbon it stores — which is at risk of entering the atmosphere more quickly as the climate changes.

Streams in Alaska are turning orange with iron and sulfuric acid. Scientists are trying to figure out why

Dozens of once crystal-clear streams and rivers in Arctic Alaska are now running bright orange and cloudy, and, in some cases, they may be becoming more acidic. This otherwise undeveloped landscape now looks as if an industrial mine has been in operation for decades, and scientists want to know why.