We don't have a crystal ball, but as journalists covering global health and development, we have a pretty good nose for emerging trends (with some help from our favorite expert sources).
Some likely trends give cause for optimism — signs of progress in solving the world's problems. Other trends are pessimistic — threats and challenges that are expected to worsen in the year ahead.
Here are 11 trend lines we'll be watching in 2020. First we'll give you the bad news — then the hopeful predictions.