Politics The coolest library on Earth At the University of Copenhagen, researchers store ice cores that hold the keys to Earth’s climate past and future.
Impacts 'Climate heartbeat': Scientists hunt for world's oldest ice An ancient ice core could provide insight into how the planet reacted the last time its atmosphere held high levels of carbon dioxide, including what happened as ice sheets warmed and melted.
Elon Musk has criticized environmental regulations. His companies have been accused of sidestepping them.
