Koala, the new poster bears of the greens
Global warming will threaten the survival of koalas by making the eucalyptus leaves on which they feed toxic, scientists warned on Wednesday.
Australia's most endearing marsupial is already under threat from a severe drought and loss of habitat as housing encroaches on woodland.
But higher temperatures and increased carbon dioxide could shut down their food supply, leaving them to starve to death.
New research shows that the level of toxicity in the leaves of eucalyptus saplings rises, and their nutrient content falls, when they are exposed to higher levels of carbon dioxide.
Just when I have stopped worrying about the Polar Bears, now it is cuddly Koalas....