Watch: NOAA scientists find mysterious, shiny orb-like object on seafloor

Video from NOAA shows the vessel’s remotely operated arm carefully "tickle" the object before picking it up and sucking it into a vacuum-like tube.

Federal judge deals another serious blow to proposed copper-nickel mine on edge Minnesota wilderness

The ruling Wednesday was the latest blow to the stalled $1.7 billion project, which has faced stiff opposition from environmental and tourism groups that say it would pose an unacceptable threat to the pristine wilderness along the U.S-Canadian border.

Air pollution from wildfires linked to dementia cases, study says

Particulate pollution comes from several sources, not just wildfires, but the study identified particulates from wildfires and agriculture as the sources linked to dementia cases.

The images were taken by TEMPO, the first space-based instrument designed to continuously measure air quality

NASA has shared this week the first images from TEMPO, the agency’s first space-based instrument designed to continuously measure air quality over North America, and do so with the resolution of a few square miles.

Why fall season should actually begin on September 1

The calendar says autumn begins on Sept. 22, but 'climatological' or 'meteorological' fall starts 3 weeks earlier.

Minnesota regulators vote to proceed with environmental review of disputed carbon capture pipeline

Minnesota regulators voted Thursday to proceed with an environmental review for part of a proposed but disputed pipeline network that would carry planet-warming carbon dioxide from Midwest ethanol plants to a permanent underground storage site.

Lutsen Mountains expansion denied, halting new trails, lifts and lodge

A proposed expansion by Lutsen Mountains that would have increased skiing and hiking terrain, provided new lifts and services, and added parking spaces will not have its application permit approved.

Monticello nuclear power plant approved to operate through 2040

Xcel Energy’s Monticello Nuclear Generating Plant received approval Thursday to continue operating through 2040. 

Loss of Antarctic ice hurting survival of emperor penguin chicks, study says

The loss of ice in one region of Antarctica last year likely resulted in none of the emperor penguin chicks surviving in four colonies, researchers reported Thursday.

Xcel Energy to build barrier at Monticello plant to keep radioactive material from river

"Constructing the barrier wall is another step the company is taking to try and ensure that the small amount of tritium still present in the groundwater remains within the plant boundaries and can be safely recovered, stored and reused on site," Xcel Energy said in a statement.

Neighbors demand 'unjust' Minneapolis trash incinerator close by 2025

People in a few Minneapolis neighborhoods joined forces with environmental activists Tuesday to ask Hennepin County to close a trash incinerator.

Residents demanding ?HERC? incinerator close
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Environmental activists in Minneapolis are teaming up to demand that Hennepin County close a trash incinerator that residents say is adding to pollution.

Death toll continues to rise in Maui wildfires
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The death toll continues to rise in the Maui wildfires, with at least 80 people confirmed dead as of Saturday.

Brainerd residents under boil water advisory

Residents in Brainerd are under a boil water advisory after construction may have contaminated the city’s drinking water supply.