Climate chief warns of 'urgency' as CO2 levels rise

The UN's climate chief called for urgency Monday as she opened a new round of global talks amid warnings that Earth-warming carbon dioxide levels were approaching a symbolic threshold never seen in human history.

High CO2 spurs wetlands to absorb more carbon

(Phys.org) —Under elevated carbon dioxide levels, wetland plants can absorb up to 32 percent more carbon than they do at current levels, according to a 19-year study published in Global Change Biology from the Smithsonian ...

Ancient forests stabilized Earth's CO2 and climate

UK researchers have identified a biological mechanism that could explain how the Earth's atmospheric carbon dioxide and climate were stabilised over the past 24 million years. When CO2 levels became too low for plants to ...

Plants Save the Earth from an Icy Doom (w/ Podcast)

(PhysOrg.com) -- Fifty million years ago, the North and South Poles were ice-free and crocodiles roamed the Arctic. Since then, a long-term decrease in the amount of CO2 in the atmosphere has cooled the Earth. Researchers ...

Toxic blue-green algae adapt to rising CO2

A common type of blue-green algae is finding it easy to adapt to Earth's rising CO2 levels, meaning blue-green algae – of which there are many toxin-producing varieties – are even more adept at handling changing climatic ...

Measuring ozone from space

Today is the UN's International Day for the Preservation of the Ozone Layer – the perfect opportunity to look at how and why measurements of this molecule are taken from space.

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