Urban trees are essential to the health of cities and their residents: they cool neighborhoods, filter pollution from the air ...

A tree can sequester quite a bit of carbon, and forests can sequester and store quite a bit more, but knowing exactly how ...

Russian student Alexei Dudoladov has been forced to go to great lengths - or rather great heights - to attend classes online, having to climb a birch tree in his remote Siberian village every time he ...