Entries by Linda Welzenbach

Old ice and snow yields tracer of preindustrial ozone

JADE BOYD JUNE 12, 2019 Old ice and snow yields tracer of preindustrial ozone Ancient air bubbles answer question about ozone levels after Industrial Revolution HOUSTON — (June 12, 2019) — Using rare oxygen molecules trapped in air bubbles in old ice and snow, U.S. and French scientists have answered a long-standing question: How much […]

Sea Ice at Thwaites Glacier

Like all good explorers who are preparing for the unknown, I went looking for information about what to expect in the place where we will spend the better part of two months. Thanks to Rob Larter who had tweeted information about the sea ice in December, I found Sentinel-1 SAR imagery imagery that shows the […]

THOR 2019 Cruise News- THOR team gets ready to set sail for Antarctica

In just a little less than one week, the THOR (Thwaites Glacier Offshore Research) science team members (including EEPS science writer Linda Welzenbach) will embark on a two month cruise to the Amundsen Sea, Antarctica. The mission: collect sediment cores from the seafloor beyond Thwaites Glacier that record its past behavior. They will also collect […]

Planetary collision that formed the moon made life possible on Earth

JADE BOYD – JANUARY 23, 2019 Study: Planetary delivery explains enigmatic features of Earth’s carbon and nitrogen Most of Earth’s essential elements for life — including most of the carbon and nitrogen in you — probably came from another planet. Earth most likely received the bulk of its carbon, nitrogen and other life-essential volatile elements from […]