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Earth science

Tree roots growing through rocks
Posted inENGAGE, News

Thirsty Plants Pull Water from Bedrock

Katherine Kornei, Science Writer by Katherine Kornei 18 October 202129 March 2023

Shrubs and trees across the United States routinely sip water stored in bedrock, a discovery that has implications for the terrestrial water cycle.

View of the Brahmaputra River with the sun low on the horizon
Posted inScience Updates

Tree Rings Reveal a 700-Year Record of Flooding in Bangladesh

by Mukund Palat Rao and Benjamin I. Cook 15 October 202115 October 2021

Trees tell of a wetter past along the Brahmaputra River and, combined with climate modeling, suggest heightened future flood risks in one of the world’s most densely populated areas.

The LIBS instrument that is part of SuperCam
Posted inNews

Lasers Have the Makings of a 21st-Century Geoscience Tool

Richard Sima, freelance science writer by Richard J. Sima 15 October 202120 December 2021

Laser-induced breakdown spectroscopy is a versatile geochemical tool being used in a wide range of applications, from Mars rovers to earthly rock identification.

This junction in Colorado’s Snake River is tinged with orange due to acid rock drainage.
Posted inENGAGE, News

New Contamination Concern for Colorado Streams

by Nancy Averett 14 October 202129 March 2023

Abandoned hardrock mines and climate change cause metals and other elements to leach into streams. They also put rare earth elements into the water, a new study finds.

A boat floats between flood buildings, with people walking on the sidewalks and across a bridge.
Posted inENGAGE, News

For Venice’s Floodgates to Work, Better Forecasts Are Needed

Damond Benningfield, Science Writer by Damond Benningfield 14 October 202129 March 2023

Climate change increases massive storm surges, which may be more than Venice’s flood-control system can handle.

Plot comparing of spectral dependence of relative solar cycle variability in percentage change from the 2009 minimum level for the SSI3 composite for four solar cycles.
Posted inEditors' Highlights

Newly Improved Solar Spectral Irradiance Composite Record

by Astrid Maute 11 October 20216 December 2022

A new study accurately captures solar irradiance, which is crucial to understand the energetics and radiation balance of Earth and its influences on the cryosphere, atmosphere, and ocean currents.

A glacier- and snow-covered high mountain peak with glacial lakes
Posted inFeatures

Adapting to Receding Glaciers in the Tropical Andes

by Tania V. Rojas, Duncan Quincey, Pedro Rau, Daniel Horna-Muñoz and Jorge D. Abad 8 October 20211 June 2023

Integrated approaches are needed to understand and respond to changes in tropical mountain ecosystems and communities brought about by receding glaciers and changes in land use.

Posted inNews

Greener, Wetter Arabia Was a Crossroads of Early Human Migration

by J. Besl 7 October 202126 April 2022

Hand axes, hippo bones, and a stack of ancient lake beds show that arid Arabia experienced intervals of humid weather, spurring pulses of human migration over the past 400,000 years.

Against a blue sky streaked with white clouds, Michael Bunds runs along a dirt road as he lands a black fixed-wing drone. Chelsea Scott, wearing red, stands with her back to the photographer, watching the drone and looking at desert scrub in the foreground.
Posted inENGAGE, News

Drone Rules Make Tracking Down Faults a Difficult Feat

by Alka Tripathy-Lang 6 October 202124 April 2024

Regulations differ from country to country, but on one point, they’re relatively uniform: Drones must remain within their operators’ line of sight. How do earthquake scientists collect drone data while working within the rules?

Several charts showing the results of hydrothermal flow modelling along a 26 km-long line located on 7-million-year-old Atlantic oceanic crust.
Posted inEditors' Highlights

Mechanisms of Hydrothermal Ocean Plate Cooling Revealed

by V. Sallarès 28 September 202127 January 2023

A combination of waveform tomography and hydrothermal modelling allows characterizing the mechanisms and reach of fluid flux and ocean plate cooling near mid-ocean ridges with unprecedented detail.

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