Emissions ticked up 1.3% even as renewable energy surpassed coal power nationwide for the first time in over six decades, with wind, solar and hydropower generating 22% of the country’s electricity compared with 20% from coal.The new estimate puts nationwide emissions back in line with their long-term trajectory after nearly two years of Covid-related disruptions, said Ben King, an associate director at the Rhodium Group and an author of the report.Beyond that threshold, scientists say the risk of climate catastrophe, including life-threatening heat waves and food and water scarcity, increases significantly.The recently passed Inflation Reduction Act, a landmark climate and tax law, is supposed to help bend the emissions curve closer to the 2030 goal, but even it is likely to fall short.The initial outbreak of the coronavirus triggered widespread lockdowns and slashed US energy use to its lowest level in decades, with emissions plummeting more than 10%."