Tags Atmosphere

Tag: Atmosphere

Flow in the asthenosphere drags tectonic plates along

New simulations of Earth's asthenosphere find that convective cycling and pressure-driven flow can sometimes cause the planet's most fluid layer of mantle to move...

Scientists find new evidences of the megaflood that ended the Messinian...

A study conducted by an international team of scientists has found new evidence supporting the hypothesis of a mega-flood occurring during the Zanclean period,...

Mountain erosion may add CO2 to the atmosphere

Scientists have long known that steep mountain ranges can draw carbon dioxide (CO2) out of the atmosphere -- as erosion exposes new rock, it...

New source of global nitrogen discovered

For centuries, the prevailing science has indicated that all of the nitrogen on Earth available to plants comes from the atmosphere. But a study...

Two-billion-year-old salt rock reveals rise of oxygen in ancient atmosphere

A 2-billion-year-old chunk of sea salt provides new evidence for the transformation of Earth's atmosphere into an oxygenated environment capable of supporting life as...

Primordial oceans had oxygen 250 million years before the atmosphere

Research by a University of Minnesota Duluth (UMD) graduate student Mojtaba Fakhraee and Associate Professor Sergei Katsev has pushed a major milestone in the...

World’s oldest known oxygen oasis discovered

In the Earth's early history, several billion years ago, only traces of oxygen existed in the atmosphere and the oceans. Today's air-breathing organisms could...

Which came first: Complex life or high atmospheric oxygen?

We and all other animals wouldn't be here today if our planet didn't have a lot of oxygen in its atmosphere and oceans. But...

Formation of coal almost turned our planet into a snowball

While burning coal today causes Earth to overheat, about 300 million years ago the formation of that same coal brought our planet close to...

Changes in Earth’s crust caused oxygen to fill the atmosphere

Scientists have long wondered how Earth's atmosphere filled with oxygen. UBC geologist Matthijs Smit and research partner Klaus Mezger may have found the answer...

Early Earth had a hazy, methane-filled atmosphere

More than 2.4 billion years ago, Earth's atmosphere was inhospitable, filled with toxic gases that drove wildly fluctuating surface temperatures. Understanding how today's world...

Study opens new questions on how the atmosphere and oceans formed

A new study led by The Australian National University (ANU) has found seawater cycles throughout Earth's interior down to 2,900km, much deeper than previously...

Fossil fuel formation: Key to atmosphere’s oxygen?

For the development of animals, nothing -- with the exception of DNA -- may be more important than oxygen in the atmosphere. Oxygen enables the...

Earth’s ‘technosphere’ now weighs 30 trillion tons

An international team led by University of Leicester geologists has made the first estimate of the sheer size of the physical structure of the...

Scientists probe underground depths of Earth’s carbon cycle

Understanding how carbon dissolves in water at the molecular level under extreme conditions is critical to understanding the Earth's deep carbon cycle—a process that...

Pollution emitted near equator has biggest impact on global ozone

Since the 1980s, air pollution has increased worldwide, but it has increased at a much faster pace in regions close to the equator. Research...

Megadrought risks in southwest U.S. soar as atmosphere warms

As a consequence of a warming Earth, the risk of a megadrought -- one that lasts more than 35 years -- in the American...

Ice cores reveal a slow decline in atmospheric oxygen over the...

Princeton University researchers have compiled 30 years of data to construct the first ice core-based record of atmospheric oxygen concentrations spanning the past 800,000...

Soil will absorb less atmospheric carbon than expected this century, study...

By adding highly accurate radiocarbon dating of soil to standard Earth system models, environmental scientists from the University of California, Irvine and other institutions...

Humble moss helped create our oxygen-rich atmosphere

The evolution of the first land plants including mosses may explain a long-standing mystery of how Earth's atmosphere became enriched with oxygen, according to...

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