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Climate

‘Rusty’ batteries could hold key to Minnesota's carbon-free power future

‘Rusty’ batteries could hold key to Minnesota's carbon-free power future

Two Minnesota utilities plan to install iron-air battery storage systems as they transition to clean energy sources. The batteries are made of iron, an element that’s abundant around the world — including in Minnesota.
by Kirsti Marohn

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Hendra virus rarely spills from animals to us. Climate change makes it a bigger threat

Hendra virus rarely spills from animals to us. Climate change makes it a bigger threat

It's not often that this pathogen jumps from bats to horses, then humans. When it does, the result is brutal. New research points to a surprising way to stop spillovers.
by Ari Daniel

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5 fast facts about the lack of ice on Lake Superior this year

5 fast facts about the lack of ice on Lake Superior this year

There’s not much ice on Lake Superior this winter and total ice cover has been decreasing in the last few decades. What’s the outlook for the rest of this winter and what’s behind the change?
by Paul Huttner and Ngoc Bui

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Minnesota's carbon-free electricity bill: 8 questions, answered

Minnesota's carbon-free electricity bill: 8 questions, answered

The measure that sets ambitious standards for clean energy in Minnesota over the next 17 years cleared its final legislative hurdle late Thursday night, and is headed to Gov. Tim Walz for his signature.
by Kirsti Marohn

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Minnesota makes progress in cutting emissions from electricity, more work to do in agriculture and home heating

Minnesota makes progress in cutting emissions from electricity, more work to do in agriculture and home heating

The state had not met its greenhouse gas reduction targets since the legislature created them in 2007. So what’s different this time?
by Cathy Wurzer and Alanna Elder

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Report: Minnesota’s greenhouse gas emissions dropped, but work still needed

Report: Minnesota’s greenhouse gas emissions dropped, but work still needed

Transportation remains Minnesota’s biggest source of greenhouse gases, followed by agriculture. Emissions from electricity generation continued to fall as utilities shuttered coal plants and relied more on wind and solar energy.
by Kirsti Marohn

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The polar bear capital of the world is losing its bears

The polar bear capital of the world is losing its bears

A Canadian government study shows the polar bear population around the Hudson Bay has dropped 27% in the past 5 years. How much is climate change driving the decline?
by Paul Huttner, Sven Sundgaard and Ngoc Bui

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Feds slap 20-year mining ban on land near Boundary Waters

Feds slap 20-year mining ban on land near Boundary Waters

The U.S. Department of the Interior issued a 20-year ban Thursday on new mining projects on 225,000 acres of federal land near the Boundary Waters, dealing a huge blow to the proposed Twin Metals mine near Ely, Minn.
by Dan Kraker

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