It's an important question, and the numbers are staggering. 2.4 billion people live on less than $2/day (USD), and roughly 1.2 billion people live on less than $1.25/day (USD) - the definition of "extreme global poverty."
Consider the following:
Water
3.4 million people die every year from water related diseases around the world, and roughly 780 million people do not have access to clean water.
Health
Nearly 11,700 people die every day from HIV/AIDS, tuberculosis and malaria. Close to two-thirds of these people are living in sub-Saharan Africa. Read more »