World Health: New cancer cases will rise by 77% by 2050. Tobacco, alcohol, obesity and air pollution are major factors in this expected rise.

The most developed countries are expected to record the largest increases in the number of cases. Countries that rank lowest on the Human Development Index (HDI) will see the largest increase (142%) Countries with an average Human Development index are expected. to register an increase of 99%. "Similarly, cancer deaths in these countries areexpected to almost double in 2050," the WHO added.