EnvironmentUS will need both carrots and sticks to reach net zero Modelling suggests both carbon taxes and green subsidies will be necessary to decarbonise the US economy, but the inconsistent policies of successive presidents are the "worst case" scenario News
SpaceGargantuan black hole may be a remnant from the dawn of the universe Astronomers were puzzled by a black hole around 50 million times the mass of the sun with no stars, spotted by the James Webb Space Telescope – now simulations suggest it could be a primordial black hole, something we have never seen before News