Canada’s Arctic glaciers thawing Sting in the bee venom can kill HIV Women can’t multitask either Osteoporotic patients should take more calcium: Doctors Russian scientists find 'new life' in Antarctic lake		In 2100, Earth will be hottest in 11,300 years Mars once faced ‘gigantic floods’ Reverse swing: Antarctic ice grows by 4.6% Skygazers can look forward to spotting PANSTARR comet