Tags Atmosphere

Tag: Atmosphere

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...

Buried oxygen rose to the occasion as Earth’s early atmosphere formed

Oxygen buried deep underground in minerals may have prompted the churning of Earth's rocky mantle billions of years ago and helped transform the planet's...

Oldest rocks in Australia unlock secrets of the atmosphere

Research into micro-meteorites, meteorites smaller than 2 millimeters, found in Western Australia have shed new light on the make-up of the ancient Earth's atmosphere. The...

Oxygen atmosphere recipe = tectonics + continents + life

Earth scientists from Rice University, Yale University and the University of Tokyo are offering a new answer to the long-standing question of how our...

Study pinpoints timing of oxygen’s first appearance in Earth’s atmosphere

Today, 21 percent of the air we breathe is made up of molecular oxygen. But this gas was not always in such ample, life-sustaining...

Cosmic dust reveals Earth’s ancient atmosphere

Using the oldest fossil micrometeorites -- space dust -- ever found, Monash University-led research has made a surprising discovery about the chemistry of Earth's...

Early Earth’s air weighed less than half of today’s atmosphere

The idea that the young Earth had a thicker atmosphere turns out to be wrong. New research from the University of Washington uses bubbles...

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