The World Health Organization expects global cancer cases to rise by 77% over the next three decades. The study predicts cancer-related deaths will roughly double from current levels to reach around 20 million fatalities a year by 2050. The WHO says tobacco, alcohol, air pollution, and population aging and growth are some of the key factors behind the rising numbers. Lower-income countries will be disproportionately affected. Currently, one out of every 12 patients in wealthier countries are diagnosed with breast cancer, and one in 71 will die from the disease. In poorer countries, just one in 27 patients are diagnosed in their lifetime, but one in 48 will die from breast cancer.