EnvironmentGrowing number of Earth's ‘vital signs’ endangered by climate change Key climate indicators from greenhouse gas levels to ice loss have reached record levels this year in what researchers call a “critical and unpredictable new phase of the climate crisis” 51
EnvironmentPlan to refreeze Arctic sea ice shows promise in first tests Field trials indicate that pumping seawater onto the snow on top of Arctic sea ice can make the ice thicker, offering a possible way to preserve sea ice throughout the summer 51