Air

  • Why Should We Care About Rising CO2?

    Not since camels roamed the Arctic Circle during the Pliocene Epoch three million years ago have carbon dioxide levels in the upper atmosphere been as high as they are today. In this first of a two-part series, we explore what it might mean.

  • Seneca Guns: The Booms of Summer

    Jets breaking the sound barrier, shifts in tectonic plates, earthquakes and meteoric explosions have all been blamed for the mysterious booms that occasionally rattle windows along the coast.