Mysterious, unpredictable, and dangerous astronomical event studied through tree rings
Huge spikes of radiation seem to occur every thousand years or so -- but no one really knows what they ...
Huge spikes of radiation seem to occur every thousand years or so -- but no one really knows what they ...
According to a new study published in Nature Climate Change, the snow in the Sierra Nevada mountains has reached the ...
They call it "Tree 76", because it stands 76 meters tall (249 feet) above the Muir Woods floor in California. ...
Professor Bekker and a student extract a core sample from a dead tree in Provo canyon. (C) BYU Modern climate ...