Greenhouse gases continued rising in 2013; 34 percent increase since 1990
NOAA’s latest Annual Greenhouse Gas Index (AGGI), released today, Friday, May 2, 2014, shows that the warming influence from human-emitted gases continues to increase.
May 2, 2014
Climate at the Core: how scientists study ice cores to reveal Earth’s climate history
Like a prehistoric fly trapped in amber during dinosaurs' days, airborne relics of Earth's earlier climate can end up trapped in glacial ice for eons. How do climate scientists turn those tiny relics into a story about Earth's ancient climate?
Climate at the Core
Like a prehistoric fly trapped in amber during dinosaurs' days, airborne relics of Earth's earlier climate including dust, air bubbles, sea salts, volcanic ash, and soot from forest fires—can end up trapped in glacial ice for eons. How do climate scientists turn those tiny relics into a story about Earth's ancient climate?