In a Swiss pine forest, the treetops are being sprayed with mist in a bid to discover the effect that drier or wetter air has on their ability to survive.
This article was originally published on this website.
In a Swiss pine forest, the treetops are being sprayed with mist in a bid to discover the effect that drier or wetter air has on their ability to survive.
This article was originally published on this website.
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