The final mission of the European Space Agency’s Vega rocket has encountered a bizarre setback. Key propellant tanks required for its last flight were found damaged in a landfill, jeopardizing the scheduled 2024 launch.
Tree planting projects seem like a great climate solution—lots of trees can sequester lots of carbon that would otherwise be warming the atmosphere. But, surprise surprise, it turns out you can’t just plop any old tree into the ground and expect to reap environmental benefits, new research finds.