Minecraft have teamed up with The National Conservancy to help the oceans in keeping coral alive. They have teamed up with Rabahrex, Logdotzip and Stacyplays. Stacyplays and Logdotzip with the help of their fans designed structures that help to restore coral reefs in our oceans.
A video was posted earlier today.
https://youtu.be/iFXkUgYMURc

Since, the minecraft bedrock community placed over 10 million coral blocks in the game the Minecraft team are donating 100,000 to the
National Conservancy.

This is my first news post so I am not very good at using pictures so sorry but everything you need is in the YouTube video and here:
https://minecraft.net/en-us/article/you-helped-us-help-oceans