climate forcing

  • Dust Doomed the Dinos, Scientists Say

    Dust Doomed the Dinos, Scientists Say

    We all know how the story goes: a large asteroid falls to Earth from space, slamming into the Yucatán Peninsula with 100 million megatons of force. The impact spawned tsunami waves best measured in miles and kicked up dust, soot, and sulphur that blotted out the Sun, causing the death of about 75% of Earth’s…


  • Earth Hits Record Carbon Dioxide Levels

    Earth Hits Record Carbon Dioxide Levels

    Carbon dioxide levels on the only planet known to be habitable are now more than 50% higher than pre-industrial levels, the National Oceanic and Atmospheric Association reported Friday. They’re at the highest levels in millions of years.