Small eddies play a big role in feeding ocean microbes

Subtropical gyres are enormous rotating ocean currents that generate sustained circulations in the Earth's subtropical regions just to the north and south of the equator. These gyres are slow-moving whirlpools that circulate ...

What we're still learning about how trees grow

What will happen to the world's forests in a warming world? Will increased atmospheric carbon dioxide help trees grow? Or will extremes in temperature and precipitation hold growth back? That all depends on whether tree growth ...

Identifying an elusive molecule key to combustion chemistry

Researchers at the University of Pennsylvania and Argonne National Laboratory have made the most direct observation of a key intermediate formed during the breakdown of hydrocarbons in combustion and the atmosphere. Published ...

Permafrost carbon feedbacks threaten global climate goals

Since it was first signed more than five years ago, the Paris Agreement has set the bar for the global effort to reduce greenhouse gas emissions, with more than 70 countries taking on ambitious nationally determined contributions ...

Greenhouse gases are shrinking the stratosphere

An international team of climate scientists has found evidence showing that human-created greenhouse gases have led to a shrinking stratosphere. In their paper published in the journal Environmental Research Letters, the ...

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