State of the Planet

News from the Columbia Climate School

geoengineering2

  • With Climate, Fertilizing Oceans Could be Zero-Sum Game

    In Pacific, Added Iron May Not Pull Carbon From Air as Thought

  • The Double-Edged Sword of Geoengineering

    The Double-Edged Sword of Geoengineering

    Shooting sulfur particles into the stratosphere to reflect the sun? Dumping iron into the ocean to boost the absorption of carbon dioxide? Could these far-fetched and dangerous-sounding schemes—geoengineering—help avert potentially catastrophic effects of climate change, or would they exacerbate conditions on our ever warming planet?

  • Volcanoes Have Shifted Asian Rainfall

    Defying Models, Particles Make Some Regions Drier, Others Wetter

  • Climate News Roundup — Week of 6/14

    Bill Gates funds cloud-whitening effort to reduce global warming.  USA Today Bill Gates is funding research into whether or not it is effective and feasible to increase the albedo of atmospheric clouds by spray sea mist high into the atmosphere. The plan, spearheaded by Silicon Valley inventor Armand Neukermans, is a relatively benign method of…

  • Carbon Dioxide Already in Danger Zone, Warns Study

    Revised Theory Says Levels in Air Must Decline, Not Just Stabilize

Blue banner with kids and Earth photos. Text: "Lamont-Doherty Earth Observatory Open House, Saturday, October 17, 2026, 10am-4pm.

On Saturday, October 17, 2026 from 10am to 4pm, Lamont-Doherty Earth Observatory Open House—our biggest, best science fun and discovery event of the year—will take place on our beautiful campus in Palisades, NY. Mark your calendar and join us for this free, family-friendly celebration of science! RSVP Today!

  • With Climate, Fertilizing Oceans Could be Zero-Sum Game

    In Pacific, Added Iron May Not Pull Carbon From Air as Thought

  • The Double-Edged Sword of Geoengineering

    The Double-Edged Sword of Geoengineering

    Shooting sulfur particles into the stratosphere to reflect the sun? Dumping iron into the ocean to boost the absorption of carbon dioxide? Could these far-fetched and dangerous-sounding schemes—geoengineering—help avert potentially catastrophic effects of climate change, or would they exacerbate conditions on our ever warming planet?

  • Volcanoes Have Shifted Asian Rainfall

    Defying Models, Particles Make Some Regions Drier, Others Wetter

  • Climate News Roundup — Week of 6/14

    Bill Gates funds cloud-whitening effort to reduce global warming.  USA Today Bill Gates is funding research into whether or not it is effective and feasible to increase the albedo of atmospheric clouds by spray sea mist high into the atmosphere. The plan, spearheaded by Silicon Valley inventor Armand Neukermans, is a relatively benign method of…

  • Carbon Dioxide Already in Danger Zone, Warns Study

    Revised Theory Says Levels in Air Must Decline, Not Just Stabilize