The concept is simple: a small cash reward for each negative drug test. And there’s solid science behind it.

This week, we’re taking a spin through our most-read stories of the year, from hornet-killing harps to a post-election poem.

Read our official public report to learn what we did, how we did it and the impacts we made.

In Queensland, Australia, once-unlivable wetlands are now attracting birds and fish while also reconnecting Indigenous youth with the land.

A visual exploration of how virtually every aspect of our lives is intertwined with our health.