A close look at this fallen spruce tree raises questions underlying causes and tree health.

The invasive orange hawkweed, known for its striking appearance, is rapidly spreading across Southeast Alaska, threatening local ecosystems by outcompeting native plants.

The past few decades have been the most significant for the damage the mice have caused, said Dr. Anton Wolfaardt, the Mouse-Free Marion project manager. He said their numbers have increased hugely, mainly due to rising temperatures from climate change, which has turned a cold, windswept island into a warmer, drier, more hospitable home.