Yellow Fever Outbreaks Hit Cameroon And Ghana
New York, Feb 3 2012 1:10PM The United Nations is backing a mass vaccination campaign under way in northern Cameroon, where a new outbreak of yellow fever has killed at least seven people.
Yellow-cedar decline linked to cold snaps, lack of snow
They began dying in the early 20th century, leaving scientists with a perplexing and enduring mystery about what exactly has been killing vast swaths of yellow-cedar forests along the Pacific Coast of southeast Alaska and northwest British Columbia.
Alaskan Yellow Cedar
Yellow-cedar, a culturally and economically valuable tree in southeastern Alaska and adjacent parts of British Columbia, has been dying off across large expanses of these areas for the past 100 years. But no one could say why. "The cause of tree death, called yellow-cedar decline, is now known to be a form of root freezing that occurs during cold weather in late winter and early spring, but only ...
Yellow-cedar Are Dying In Alaska: Scientists Now Know Why
Yellow-cedar, a culturally and economically valuable tree in southeastern Alaska and adjacent parts of British Columbia, has been dying off across large expanses of these areas for the past 100 years. But no one could say why?until now. "The cause of tree death, called yellow-cedar decline, is now known to be a form of root freezing that occurs during cold weather in late winter and early spring ...
