Happy #WorldOceansDay! (A Link Round-Up)

Time to show our love for the oceans! Image from WorldOceansDay.org Today is World Oceans Day, a United Nations-recognized day of ocean celebration and action. This year's theme is simple—Healthy oceans, healthy planet—with a focus on the problem of marine plastic, a topic I recently wrote about for Popular Science. Around the internets, World Oceans Day has been making a lot of waves, with lots of great articles about the importance of marine environments and what all of us can do to make them healthier. It's heartening to see the attention that this day is receiving, including the flood of posts using the hashtag on Twitter*. Here are some of my favorites ocean posts from today: