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The carbonate chimneys at the Point Dume methane seep off southern California are covered with colorful microbial mats and permeated by methane-eating microbes. Courtesy of the Schmidt Ocean Institute

Microbes in Ocean Play Important Role in Moderating Earth’s Temperature

June 14, 2021

Methane is a strong greenhouse gas that plays a key role in Earth’s climate. Anytime we use natural gas, whether we light up our kitchen stove or barbeque, we are using methane.

Only three sources on Earth produce methane naturally: volcanoes, subsurface water-rock interactions, and microbes. Between these three sources, most is generated by microbes, which have deposited hundreds of gigatons of methane into the deep seafloor. At seafloor methane seeps, it percolates upwards toward the open ocean, and microbial communities consume the majority of this...

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Tree Canopy

New Study Finds Leaf Surface Water Contributes to Total Canopy Water Content

June 7, 2021

Water availability is essential to terrestrial plants, especially tall canopy trees. Satellite observations at microwave frequencies make it possible to assess total canopy water content and plant stress. However, leaf surface water -- water coming from dew, fog and rainfall -- is often overlooked when interpreting changes in canopy water content. An increasing body of evidence, though, indicates that plants might rely more than originally thought on these nonconventional water sources.

In a recent study in ...

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