Famed Los Angeles mountain lion P-22 is buried in a private tribal ceremony in the Santa Monica Mountains. 

Researchers in Japan create viable mouse eggs from the cells of male mice alone.

Temperatures in Greenland are 50°F above normal. 

The extent of Antarctic sea ice in February 2023 reaches a record low.

A critically endangered Northern Pacific right whale turns up in Monterey Bay, California. The eastern population of the species numbers only 30 individuals, who generally reside in the Bering Sea.

The new Unit 3 reactor at Georgia Power’s Vogtle nuclear power plant initiates a fission reaction, the first new US reactor in more than 30 years to do so. It is six years late and $16 billion over budget.

Two prominent Ohio Republicans are convicted in a bribery scheme in which FirstEnergy Corp. funneled $61 million to them through dark money organizations in exchange for a $1.3 billion bailout of the company’s two nuclear power plants. 

An unusual exemption from licensing requirements by the Nuclear Regulatory Commission, plus $1.1 billion from the Biden administration, will keep Diablo Canyon, California’s sole remaining nuclear power plant, open past its scheduled end date of 2025.

Denmark begins pumping carbon dioxide into a depleted gas field under the North Sea. By 2030, it hopes to sequester 8 million metric tons per year.

The top 20 US law schools produce lawyers for fossil fuel companies at three times the rate of the average US law school.

The Interior Department announces a $25 million initiative to restore wild populations of American bison.

A new study finds that every 20 zero-emission vehicles per 1,000 people lead to a 3.2 percent drop in visits to hospital emergency rooms because of asthma attacks. 

The US Postal Service buys 9,250 all-electric delivery vans. Simultaneously, it buys 9,250 gasoline-powered vans.

COVID-19 has killed nearly 7 million people worldwide and caused the biggest drop in global life expectancy since the Great Famine in China in 1959. 

NASA is monitoring a 50-meter-in-diameter asteroid that has a 1-in-400 chance of striking Earth on Valentine’s Day, 2046.