Hannah Hoag
Cosmos Magazine
Toronto, ON, Canada
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Past articles by Hannah:
High stakes in the high north
A remote island that harbored the world’s last mammoths is once again becoming a holdout for Arctic wildlife in a changing world. Hannah Hoag reports. → Read More
History Lost to Sea
Arctic Sea Ice - Researchers are racing to record—and save—the cultural treasures of the western Canadian Arctic before they fall victim to climate change. → Read More
Preparing for the Next Ebola
Caught off guard in 2014, health care regrouped and reorganized in 2015. → Read More
The Oceans' Plastic Pollution Problem Is Far Worse Than We Thought, and Here's Why
Researchers find that 5 trillion pieces of plastic are contaminating the oceans and threatening marine life. → Read More
What the Lima Climate-Change Talks Mean for You
What happens over the next week in Peru will set the stage for a low-carbon future. → Read More
Canada Moves to Restrict Pesticide Linked to Bee Deaths
Ontario will cut use of neonicotinoids 80 percent by 2017. → Read More
What the Historic China-U.S. Climate Change Agreement Means for You
Get ready for a boom in renewable energy, electric cars, and more energy efficient homes—if the two countries make good on their promises. → Read More
Your Next Electric Car May Not Even Need a Battery
Scientists discover a way to make a car's doors, hood, and roof generate electricity. → Read More
Skin-Eating Fungus Threatens American and European Salamanders
The disease catches a ride on Asian amphibians imported as pets. → Read More
Climate Change Is Shrinking Italian Mountain Goats
As temperatures rise, chamois are eating less as they moved higher elevations. → Read More
Why an Arizona Rancher Wants to Save the Critically Endangered Black-Footed Ferret
A provision of the Endangered Species Act lets landowners help save imperiled wildlife without restricting use of their property. → Read More
Europe to Make It Easier to Import Dirty Tar Sands Oil From Canada
The EU waters down a proposal to slap a warning label on the most polluting petroleum. → Read More
The Downside to Cleaning Up Air Pollution: Devastating Monsoons
Scientists find that the burning of fossil fuels has suppressed rain in India, Southeast Asia, and parts of Africa. → Read More
The Carbon Time Bomb Is Set to Go Off in 30 Years—or Less
A new study finds that we’re about to bust our carbon budget and need to slash greenhouse gas emissions. Now. → Read More
Bluefin Tuna in the Arctic?
Warming oceans mean fish are migrating north, sparking new conflicts over fisheries. → Read More
Nearly Half the World’s Trash Is Burned, and That’s Worsening Climate Change
Researchers find that the amount of harmful pollution from such fires may be underestimated by as much as 40 percent. → Read More
Keystone XL's Greenhouse Gas Emissions Could Be Far Worse Than Thought
A new report says the tar sands oil pipeline could emit four times more carbon than the U.S. government has estimated. → Read More
Why Industrial Farming and Climate Change Mean More Toxic Drinking Water for the Midwest
Scientists call for cuts in the use of agricultural fertilizers to prevent runoff from contaminating water supplies. → Read More
How to Help Stop Industrial Agriculture From Killing the Monarch Butterfly
Biologists believe the monarch will become endangered unless we start planting milkweed. Fast. → Read More
This Technology Could Save Endangered Blue Whales From Colliding With Cargo Ships
Blue whales are the world's largest creatures, but they're not easy to find. → Read More