Scientists scramble to explain unusual bloom of Sargassum

Dead, red trees signal an increasingly dire outbreak driven by warm summers and plentiful spruce, especially in the Susitna Valley.

According to the Icelandic Institute of Natural History, pollen levels are considerably above the average for this time of year, causing considerable irritation for those with pollen allergies.

Questions have been raised after the 10th widest Douglas fir tree in BC BigTree Registry is cut down.

As many allergy-sufferers across Finland may have already suspected, birch pollen levels were very high on Wednesday, according to the University of Turku.

City a ‘smoky hell’ as hill on opposite side of Amur River is in flames while driver films inferno on train track.

We have over two weeks of cold windy weather. It started in mid April around the time of the big wind storm. And in relation of the wind storm on April 24th, Rick Thoman wrote: "Winds this strong in the Anchorage are rare at this time of year. An unusually strong storm for the season in the southeastern Bering Sea produced southeast strong winds blowing across the Chugach Mountains. However, being April, the temperature profile of the atmosphere close to the ground was more conducive than in winter for allowing the very strong winds aloft to reach down to the ground.

Sargassum is free-floating brown macro-algae that lives in the temperate and tropical oceans of the world. In the open ocean, the floating seaweed provides important ecosystem services by acting as habitats for a diverse group of marine animals. It provides food, shade, and shelter to many types of specialized fish, crustaceans, and turtles.

In the midst of B.C.'s record-breaking wildfire season, the heat from four fires triggered huge thunderstorms that sent smoke flying into the stratosphere, eventually spreading through the entire Northern Hemisphere.

There is a spruce beetle outbreak in Southcentral Alaska. Since the beetles don't emerge for a few weeks, we might as well start thinking about the problem.

Invasive species are a more important issue as increasingly warm winters and wetter summers help grasslands and forests in the North grow like never before, changing the very fabric of the North’s ecosystem.

An early melt-out date can make for an especially bad wildfire season, but this year, it’s right on schedule for much of the state. Listen now

A severe lack of rainfall during over southern South America during the summer of 2017 - 2018 has led to the worst drought in decades over portions of Argentina and Uruguay.

If you factor in wildlife changes, it could be even more.

Rising ocean levels are causing waves to break on the statues and platforms built a thousand years ago. The island risks losing its cultural heritage. Again.

In just a few short years, the Northern California waters stretching from Sonoma to Southern Humboldt have undergone a dramatic transformation, with stretches stripped bare of their once varied marine life in a phenomenon known as "urchin barren."

As its vital snowpack shrinks and droughts intensify, Californias giant $50 billion agricultural industry is at a crossroads: how to keep feeding the nation while adapting to the reality of …

The Svalbard Global Seed Vault celebrates its first decade in operation by accepting its millionth sample—and a grant for work to keep those samples safe despite melting permafrost.