Why do plant roots grow down and not up?

(PhysOrg.com) -- It is essential for roots to grow down so they can explore the soil and maximise their water uptake. But how they know that is a question that has fascinated scientists since Darwin. Now scientists led by ...

Research shows revived oceanic CO2 uptake

Breathe in, breathe out, in, out... Like a giant lung, the Southern Ocean seasonally absorbs vast amounts of carbon dioxide (CO2) from the atmosphere and releases it back later in the year. But on an annual average the seas ...

A new route for plant nutrient delivery

Agriculture around the globe requires new solutions for food and water sustainability. With more frequent climate extremes, growing populations, increased food demand, and global crop threats, environmental engineers are ...

Key to survival of forest giants revealed

(Phys.org)—Anyone flying into Melbourne from the east notices the thousands of hectares of dead Mountain Ash trees that were killed in the 2009 Black Saturday fires, which marked the culmination of an extended heatwave.

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