The United Nations reports a global shift toward renewable energy, calling it a "positive tipping point." Tuesday's U.N. reports reveal that 92.5% of new electricity capacity in 2022 came from renewables, with wind and solar leading the way. Renewables like solar and wind are now significantly cheaper than fossil fuels, driving investment to $2 trillion last year. However, officials warn the transition is not happening fast enough, especially in regions like Africa. Despite booming renewables, fossil fuel production continues to rise due to increasing energy demands. U.N. Secretary-General Antonio Guterres calls on tech firms to power data centers completely with renewables by 2030.

Despite more than a year of warnings that critical Ukrainian nuclear energy infrastructure sites are vulnerable to potential Russian attacks, Ukraine's Energy Ministry has failed to act swiftly to protect them, government officials have told The Associated Press. Only in the fall, after Ukrainian intelligence agencies warned of potential strikes targeting nuclear transmission facilities, was action taken to begin building protection, the officials said — far too late in the event of an attack. Russia's renewed attacks this winter have heightened scrutiny over these failures. Two years of punishing Russian strikes on its power grid have left Ukraine reliant on nuclear power for more than half of its electricity generation.