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The composition of fossilised zooplankton shells has enabled the reconstruction of past pH and CO2. Credit: University of Southampton

By 2025, carbon dioxide levels in Earth’s atmosphere will be higher...

A sample of 2-billion-year-old salt (pink-white recrystallized halite) with embedded fragments of calcium sulfate from a geological drill core in Russian Karelia.

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

Scientists probe underground depths of Earth’s carbon cycle

A 3D computer model of the asthenosphere by Rice University geophysicists finds that the convective cycling and pressure-driven flow can sometimes cause the asthenosphere to move even faster than the tectonic plates riding atop it.

Flow in the asthenosphere drags tectonic plates along

Natural magnesite crystal (4 microns wide).

Faster way to make mineral to remove carbon dioxide from atmosphere

the central range of Taiwan

Mountain erosion may add CO2 to the atmosphere

Earth’s ‘technosphere’ now weighs 30 trillion tons

Fossil fuel formation: Key to atmosphere’s oxygen?

Ocean.

Primordial oceans had oxygen 250 million years before the atmosphere

Oldest rocks in Australia unlock secrets of the atmosphere

Study opens new questions on how the atmosphere and oceans formed

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

Oxygen atmosphere recipe = tectonics + continents + life

Early Earth had a hazy, methane-filled atmosphere

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

Cosmic dust reveals Earth’s ancient atmosphere

Humble moss helped create our oxygen-rich atmosphere

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

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

Amber provides new insights into the evolution of the Earth’s atmosphere

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