Earth Sciences

Earth Sciences

Curiosity Rover Finds Strong Evidence of Flowing Water on Mars

Despite satellite images that show vast networks of channels, past Mars rover missions have shown limited evidence for flowing water on Mars. Now, rocks…

Earth Sciences

NASA Tracks Hurricane Barbara’s Rapid Weakening

Barbara is moving across the Isthmus of Tehuantepec today, May 30. Barbara could regenerate over the Bay of Campeche, on the Gulf of Mexico side of Mexico, and…

Earth Sciences

How Elevated CO2 Is Greening Arid Regions Worldwide

Now, a study of arid regions around the globe finds that a carbon dioxide “fertilization effect” has, indeed, caused a gradual greening from 1982 to 2010.Focusing on the southwestern corner of North America, Australia’s outback, the Middle East, and some parts of Africa, Randall Donohue of the Commonwealth Scientific and Industrial Research Organization (CSIRO) in Canberra, Australia and his colleagues developed and applied a mathematical model to predict the extent of the carbon-dioxide (CO2) fertilization effect. They then tested this prediction by studying satellite imagery and teasing out the influence of carbon dioxide on greening from other factors such as precipitation, air temperature, the amount of light, and land-use changes….

Earth Sciences

Penn Research Unveils Historic Sea-Level Change in NJ Coastline

Because much of the storm’s devastation was wrought by flooding in the aftermath, researchers have been paying attention to how climate change and sea-level…

Earth Sciences

New CO2 Sequestration Technique by Lawrence Livermore Scientists

Lawrence Livermore scientists have discovered and demonstrated a new technique to remove and store atmospheric carbon dioxide while generating carbon-negative…

Earth Sciences

NASA Monitors Tropical Cyclone Near Southwestern Mexico

System 92E may organize more and become Tropical Storm Barbara later on May 28 as it continues organizing near the southwestern Mexican coast. When NASA’s Aqua…

Earth Sciences

Small Dams in China Cause Unexpected Environmental Harm

Although large dams are generally considered more harmful than their smaller counterparts, the research team’s surveys of habitat loss and damage at several…

Earth Sciences

Climate researchers discover new rhythm for El Niño

A mystery, however, has remained despite decades of research: Why does El Niño always peak around Christmas and end quickly by February to April? Now there is…

Earth Sciences

From Potsdam to Pakistan: Confronting vulnerability by building climate research capacities

To confront this challenge, the new Centre for Climate Research & Development (CCRD) took up its work this month – a substantial effort to build up indigenous…

Earth Sciences

Strong earthquake at exceptional depth

Because of the great depth of the earthquake a tsunami is not expected and there should also be no major damage due to shaking. Professor Frederik Tilmann of…

Earth Sciences

Tracking the Earth’s Mantle

From Virginia to Florida, there is a prehistoric shoreline that, in some parts, rests more than 280 feet above modern sea level. The shoreline was carved by…

Earth Sciences

Geochemist Aids Development of Geologic Time Scale for Study of Earth’s History

Geochemist Mark Schmitz is one of four editors on The Geologic Time Scale 2012, or GTS2012, a 1,144-page compilation of the latest understanding of Earth’s…

Earth Sciences

NASA's SDO Observes Mid-level Solar Flare

While this CME was not Earth-directed, it has combined with an earlier CME, and the flank of the combined cloud may pass Earth. Particles from the CME cannot…

Earth Sciences

NASA's Landsat Satellite Looks for a Cloud-Free View

Once one of the largest seas in the world, it shrunk to a tenth of its original volume after Russia diverted its feeder rivers in the 1960s. Scientists…

Earth Sciences

Amazon River Exhales Virtually All Carbon Taken Up by Rain Forest

Until recently people believed much of the rain forest's carbon floated down the Amazon River and ended up deep in the ocean. University of Washington research…

Earth Sciences

Satellites Track Storm System Behind Moore, OK Tornado

The tornado that struck Moore on the afternoon of Monday, May 20, was an F-4 tornado on the enhanced Fujita scale, according to the National Weather Service….

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