An unprecedented belt of brown algae stretches from West Africa to the Gulf of Mexico. The largest bloom of macroalgae in the world, has been dubbed the Great Atlantic Sargassum Belt.

Unusually high abundance of rusty tussock moth caterpillars in the Nome area.

Unusually high abundance of caterpillars in the Nome River Valley.

Local residents debated whether a massive release of spruce pollen, which accumulated on every surface—including car bonnets, picnic tables and the nearby Kachemak Bay—amounted to a “golden sheen” or a “yellow scum”. The fine dust turned the surface of the sea the colour of butter and left a bright, lemony line on shore that marked the extent of high tide and gave off a sickly sweet smell. This huge release of pollen might be yet another symptom of a rapidly changing environment.

As lower Kenai Peninsula temperatures have soared recently, local farmers and gardeners have concerns about how June’s lack of rain and steady warm temperatures will affect their businesses in the weeks ahead.

Uncommon wildlfower species found in suburban Calgary.

"My family and I have been RV camping across Alaska for the last several years. This year, the mass amounts of dead spruce trees have been more apparent than any year prior."

Swimming at the lake is not recommended at the moment, despite a major purification process in 2017.

The willow blotch leaf miner appears to be having a banner year in Whitehorse, likely because of hot, dry conditions in the city this spring.

Elodea was discovered in Alexander Lake in 2014 by researchers checking minnow traps. At the time, it covered 20 percent of the lake but now has spread to 90 percent.

A new study has found permafrost at outposts in the Canadian Arctic is thawing 70 years earlier than predicted.

Potentially harmful blue-green algae has increased in lakes over the past week.

Drought levels have been raised already for parts of the province and Dave Campbell, with the B.C. River Forecast Centre, says the current forecast points to drought conditions provincewide in the coming weeks.

Early summer in Moscow brings an onslaught of allergy-inducing, Instagram-ready fluff from poplar seeds.

Dr. Antony Ham Pong, who's been treating allergy patients for about 35 years, warns the combination of a wet spring and heavy snow melt threaten to create a "super bloom of ragweed with lots of pollen."

The forest on the East side of Cheney Lake is changing and the biggest change is the proliferation of May Day trees.

For those who suffer from seasonal allergies, spring means red eyes, mucus and fits of sneezing. This year, the Lynn Canal has seen a remarkable spruce pollen bloom.

It is believed that the area was once-fertile land and a township stretching for 20 miles.