We want to hear from you, our readers. Please take a moment to vote on which of the four stories below from the past year left the biggest mark on you. We’ll let you know the winner in a few days.

What was your favorite Ensia article of 2017?

If you need a refresher, you can revisit these stories on hazardous vapors, carbon sequestration, wildlife ranching and deep ocean impacts.

Ensia is committed to publishing in-depth, impactful pieces showcasing innovative responses to global environmental challenges across a broad range of topics. Your input today will help ensure that we continue to tell the stories you believe need to be told.

And as always, we welcome your feedback and suggestions for topics we should cover in the coming months and beyond.