Scotsman: MORE than half of Europe’s frog, toad and newt species could be wiped out by the middle of the century, scientists have warned. Amphibians across the world are at risk of extinction as a result of climate change, habitat destruction and disease, according to the Zoological Society of London (ZSL). At a lecture at London Zoo last night, Dr Trent Garner, a ZSL research fellow, warned that UK species, such as the common toad, were among those increasingly under threat. With less …