LDEO Research Blogs

  • Earthquakes, floods, sea-level rise and sudden shifts in river courses threaten many of the 150 million Bangladeshis living in the low-lying Brahmaputra River delta. Scientists from Lamont-Doherty, Dhaka University and other institutions have begun a five-year project to understand the hazards and the possible hidden links among them. Lamont seismologist Michael Steckler keeps us up to date on the work.

  • Driven by processes in the deep earth over millions of years, the East African Rift is slowly tearing the continent apart, producing earthquakes and volcanoes along its 2,400-mile track. A scientific team including Donna Shillington, James Gaherty and Cornelia Class of Columbia University’s Lamont-Doherty Earth Observatory is working in Malawi and Tanzania to understand the causes, the long-term evolution, and the real-time hazards.

  • The ice sheet that drains into West Antarctica's Amundsen Sea is about the size of Texas and two miles thick. Home to two of Antarctica's five biggest glaciers-Pine Island and Thwaites-this region holds enough ice to raise global sea level 1.2 meters. Understanding how the ice changed from the last ice age to today will help us predict future sea level rise. Join Lamont-Doherty marine geologist Frank Nitsche on his voyage aboard the Swedish ice-breaking ship, the Oden.

  • Scientists from a number of research institutions are participating in an expedition aboard the R/V L’Atalante to study how microorganisms in the South Pacific Ocean influence the carbon cycle. Lamont-Doherty Earth Observatory graduate student Kyle Frischkorn is among them; his goal is to assess how the microorganism Trichodesmium and other microbes interact, and the resulting physiological and biogeochemical impacts these processes have on marine ecosystems.

  • Over the past six decades, researchers have been perfecting the art and science of measuring the chemistry of ocean sediments to learn how ocean temperatures, ocean circulation, and marine biological productivity have evolved. The purpose of this research is ultimately to understand more about today’s climate system and to test numerical models of the future Earth system. In this blog, climate scientist Kelsey Dyez of the Lamont-Doherty Earth Observatory will explore research and recent findings, and also share stories of how scientists go about their jobs and come to such understandings.