It all started with an anonymous post on Instagram that read “We’ll plant 1 tree for every pet picture." In a matter of hours, Instagram was flooded with people posting pictures of their pets with an ...

The promise was straightforward: “We’ll plant 1 tree for every pet picture.” Within minutes, that prompt this week from an account called Plant A Tree Co. took off on Instagram. It became a global ...

The question is as obvious as the idea is strange. How do you put a boat in a tree? Picture the tree house you built—or always wanted to build—as a kid. Then remove the walls and cover the floor with ...