In Alaska, pasque flowers are known to bloom in May, but increasingly warm temperatures may create conditions that lead to earlier bloom times.

After a cold winter and spring, high temperatures around the Interior prompted birch tree buds to burst, sending record-setting levels of pollen into the air.

Pollen may be hanging in the air longer than usual due to lack of rain

The northwest and west shoreline of Cormorant Island, British Columbia appears to have eroded due to sea level rise during the last few decades.

I noticed sections of trees that had fallen over and or had their tops broken off. I'm wondering if it was a micro storm or a disease that affected the trees.

Look down into the waters of the Venice canals today and there is a surprising sight – not just a clear view of the sandy bed, but shoals of tiny fish, scuttling crabs and multi-coloured plant-life.

Willows are budding early, following temperature swings of 40 to approximately -32 degrees Fahrenheit between February and March.

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.

Pia Östensson, a biologist and pollen expert at Stockholm's Natural History museum, explains why there is so much aspen fluff this year and why it is not related to recent wildfires.

A growing die off of native Western Red Cedar trees is becoming visible right across East Vancouver Island now. Experts say its a symptom of climate change and as Skye Ryan reports, its changing the forests we've come to know across this region.

The worst-hit areas appear to be established neighborhoods with older spruce trees, especially in Turnagain and Spenard.

Kettle ponds in Denali National Park contain less water this spring than in previous years, due to low snowfall and permafrost thaw. Shrubs are replacing grasses as the lakes dry.

One of B.C.'s most abundant plants is in trouble: patches of hardy salal plants are turning up brown, crispy and dying.

Hikers across Vancouver Island say they've been finding entire forests with dying salal. No one knows why it's dying but the ramifications could be serious.