The cold exterminated all of them

Permian-Triassic boundary in shallow marine sediments, characterised by a significant sedimentation gap between the black shales of Permian and dolomites of Triassic age. This gap documents a globally-recognised regression phase, probably linked to a period of a cold climate and … Continue reading

How nature creates forest diversity

In the new study, the researchers combined tree physiology, ecology, and evolution to construct a new model in which tree species and their niches coevolve in mutual dependence.Image Credit:Flickr/ChrisA1995 Forests, especially tropical forests, are home to thousands of species of … Continue reading

A rusty green early ocean?

Green rust (l) forming in Dr. Halevy’s lab in conditions similar to those in the Precambrian ocean. (r) Electron microscope images reveal the thin, hexagonal plates typical of green rust.Credit: Weizmann Institute of Science Though they may seem rock solid, … Continue reading

Exploring Our Changing Earth, in Real Time

Scientists at Lamont are using all types of scientific platforms for real-time data analysis, from seafloor to space. Credit: Columbia University Across the Lamont-Doherty Earth Observatory campus, scientists are exploring undersea volcanoes, monitoring coastal erosion along hard-to-reach shorelines, and studying … Continue reading

The case of the missing diamonds

Artist’s conception of comet approaching Earth-like planet. The explosion of a comet near our planet’s surface, it was proposed, might have lofted enough dust and debris into Earth’s atmosphere to temporarily dim the sun. Credit: Shutterstock It all began innocently … Continue reading

It’s what underneath that counts

Long-standing recycling of ancient sulfur in billion-year-old rocks supplies energy to terrestrial deep subsurface biosphere and sheds insights into search for life on Mars To the naked eye, ancient rocks may look completely inhospitable, but in reality, they can sustain … Continue reading